Home / 156,720.40-235,080.60-133,100.80

Finding the Fourth Proportional to 156,720.40, 235,080.60 and 133,100.80

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Solution

The fourth proportional to 156,720.40, 235,080.60 and 133,100.80 is: 199,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,720.40 : 235,080.60 = 133,100.80 : x
  2. Step 2: Convert to fraction form
    156,720.40/235,080.60 = 133,100.80/x
  3. Step 3: Cross multiply
    156,720.40x = 235,080.60 × 133,100.80
  4. Step 4: Simplify right side
    156,720.40x = 31,289,415,924.48
  5. Step 5: Solve for x
    x = 31,289,415,924.48/156,720.40
  6. Step 6: Final answer
    x = 199,651.20

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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.