Home / 83,038.30-124,557.45-68,458.30

Finding the Fourth Proportional to 83,038.30, 124,557.45 and 68,458.30

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Solution

The fourth proportional to 83,038.30, 124,557.45 and 68,458.30 is: 102,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,038.30 : 124,557.45 = 68,458.30 : x
  2. Step 2: Convert to fraction form
    83,038.30/124,557.45 = 68,458.30/x
  3. Step 3: Cross multiply
    83,038.30x = 124,557.45 × 68,458.30
  4. Step 4: Simplify right side
    83,038.30x = 8,526,991,279.34
  5. Step 5: Solve for x
    x = 8,526,991,279.34/83,038.30
  6. Step 6: Final answer
    x = 102,687.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.