Home / 125,240.64-172,837.44-74,929.92

Finding the Fourth Proportional to 125,240.64, 172,837.44 and 74,929.92

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Solution

The fourth proportional to 125,240.64, 172,837.44 and 74,929.92 is: 103,406.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,240.64 : 172,837.44 = 74,929.92 : x
  2. Step 2: Convert to fraction form
    125,240.64/172,837.44 = 74,929.92/x
  3. Step 3: Cross multiply
    125,240.64x = 172,837.44 × 74,929.92
  4. Step 4: Simplify right side
    125,240.64x = 12,950,695,552.20
  5. Step 5: Solve for x
    x = 12,950,695,552.20/125,240.64
  6. Step 6: Final answer
    x = 103,406.49

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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.