Home / 124,901.12-172,359.28-71,203.44

Finding the Fourth Proportional to 124,901.12, 172,359.28 and 71,203.44

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Solution

The fourth proportional to 124,901.12, 172,359.28 and 71,203.44 is: 98,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,901.12 : 172,359.28 = 71,203.44 : x
  2. Step 2: Convert to fraction form
    124,901.12/172,359.28 = 71,203.44/x
  3. Step 3: Cross multiply
    124,901.12x = 172,359.28 × 71,203.44
  4. Step 4: Simplify right side
    124,901.12x = 12,272,573,651.92
  5. Step 5: Solve for x
    x = 12,272,573,651.92/124,901.12
  6. Step 6: Final answer
    x = 98,258.32

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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.