Home / 125,116.80-172,663.68-68,528.20

Finding the Fourth Proportional to 125,116.80, 172,663.68 and 68,528.20

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Solution

The fourth proportional to 125,116.80, 172,663.68 and 68,528.20 is: 94,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,116.80 : 172,663.68 = 68,528.20 : x
  2. Step 2: Convert to fraction form
    125,116.80/172,663.68 = 68,528.20/x
  3. Step 3: Cross multiply
    125,116.80x = 172,663.68 × 68,528.20
  4. Step 4: Simplify right side
    125,116.80x = 11,832,331,195.78
  5. Step 5: Solve for x
    x = 11,832,331,195.78/125,116.80
  6. Step 6: Final answer
    x = 94,570.28

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1.5x scale

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.