Home / 174,720.39-240,519.12-129,312.80

Finding the Fourth Proportional to 174,720.39, 240,519.12 and 129,312.80

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Solution

The fourth proportional to 174,720.39, 240,519.12 and 129,312.80 is: 178,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,720.39 : 240,519.12 = 129,312.80 : x
  2. Step 2: Convert to fraction form
    174,720.39/240,519.12 = 129,312.80/x
  3. Step 3: Cross multiply
    174,720.39x = 240,519.12 × 129,312.80
  4. Step 4: Simplify right side
    174,720.39x = 31,102,202,155.47
  5. Step 5: Solve for x
    x = 31,102,202,155.47/174,720.39
  6. Step 6: Final answer
    x = 178,011.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.