Home / 125,317.62-172,937.97-71,619.30

Finding the Fourth Proportional to 125,317.62, 172,937.97 and 71,619.30

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Solution

The fourth proportional to 125,317.62, 172,937.97 and 71,619.30 is: 98,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,317.62 : 172,937.97 = 71,619.30 : x
  2. Step 2: Convert to fraction form
    125,317.62/172,937.97 = 71,619.30/x
  3. Step 3: Cross multiply
    125,317.62x = 172,937.97 × 71,619.30
  4. Step 4: Simplify right side
    125,317.62x = 12,385,696,354.82
  5. Step 5: Solve for x
    x = 12,385,696,354.82/125,317.62
  6. Step 6: Final answer
    x = 98,834.44

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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.