Home / 125,354.28-172,985.94-68,765.16

Finding the Fourth Proportional to 125,354.28, 172,985.94 and 68,765.16

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Solution

The fourth proportional to 125,354.28, 172,985.94 and 68,765.16 is: 94,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,354.28 : 172,985.94 = 68,765.16 : x
  2. Step 2: Convert to fraction form
    125,354.28/172,985.94 = 68,765.16/x
  3. Step 3: Cross multiply
    125,354.28x = 172,985.94 × 68,765.16
  4. Step 4: Simplify right side
    125,354.28x = 11,895,405,841.85
  5. Step 5: Solve for x
    x = 11,895,405,841.85/125,354.28
  6. Step 6: Final answer
    x = 94,894.29

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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.