Home / 102,057.09-140,842.39-56,120.23

Finding the Fourth Proportional to 102,057.09, 140,842.39 and 56,120.23

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Solution

The fourth proportional to 102,057.09, 140,842.39 and 56,120.23 is: 77,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,057.09 : 140,842.39 = 56,120.23 : x
  2. Step 2: Convert to fraction form
    102,057.09/140,842.39 = 56,120.23/x
  3. Step 3: Cross multiply
    102,057.09x = 140,842.39 × 56,120.23
  4. Step 4: Simplify right side
    102,057.09x = 7,904,107,320.55
  5. Step 5: Solve for x
    x = 7,904,107,320.55/102,057.09
  6. Step 6: Final answer
    x = 77,447.90

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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.