Home / 112,089,970.80-168,134,956.20-99,335,386.80

Finding the Fourth Proportional to 112,089,970.80, 168,134,956.20 and 99,335,386.80

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Solution

The fourth proportional to 112,089,970.80, 168,134,956.20 and 99,335,386.80 is: 149,003,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,089,970.80 : 168,134,956.20 = 99,335,386.80 : x
  2. Step 2: Convert to fraction form
    112,089,970.80/168,134,956.20 = 99,335,386.80/x
  3. Step 3: Cross multiply
    112,089,970.80x = 168,134,956.20 × 99,335,386.80
  4. Step 4: Simplify right side
    112,089,970.80x = 16,701,750,908,728,056
  5. Step 5: Solve for x
    x = 16,701,750,908,728,056/112,089,970.80
  6. Step 6: Final answer
    x = 149,003,080.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.