Home / 95,740.80-143,611.20-91,148.10

Finding the Fourth Proportional to 95,740.80, 143,611.20 and 91,148.10

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Solution

The fourth proportional to 95,740.80, 143,611.20 and 91,148.10 is: 136,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,740.80 : 143,611.20 = 91,148.10 : x
  2. Step 2: Convert to fraction form
    95,740.80/143,611.20 = 91,148.10/x
  3. Step 3: Cross multiply
    95,740.80x = 143,611.20 × 91,148.10
  4. Step 4: Simplify right side
    95,740.80x = 13,089,888,018.72
  5. Step 5: Solve for x
    x = 13,089,888,018.72/95,740.80
  6. Step 6: Final answer
    x = 136,722.15

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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.