Home / 125,130.50-172,680.18-68,542.10

Finding the Fourth Proportional to 125,130.50, 172,680.18 and 68,542.10

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Solution

The fourth proportional to 125,130.50, 172,680.18 and 68,542.10 is: 94,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,130.50 : 172,680.18 = 68,542.10 : x
  2. Step 2: Convert to fraction form
    125,130.50/172,680.18 = 68,542.10/x
  3. Step 3: Cross multiply
    125,130.50x = 172,680.18 × 68,542.10
  4. Step 4: Simplify right side
    125,130.50x = 11,835,862,165.58
  5. Step 5: Solve for x
    x = 11,835,862,165.58/125,130.50
  6. Step 6: Final answer
    x = 94,588.15

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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.