Home / 100,625.04-138,780.12-62,358

Finding the Fourth Proportional to 100,625.04, 138,780.12 and 62,358

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Solution

The fourth proportional to 100,625.04, 138,780.12 and 62,358 is: 86,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,625.04 : 138,780.12 = 62,358 : x
  2. Step 2: Convert to fraction form
    100,625.04/138,780.12 = 62,358/x
  3. Step 3: Cross multiply
    100,625.04x = 138,780.12 × 62,358
  4. Step 4: Simplify right side
    100,625.04x = 8,654,050,722.96
  5. Step 5: Solve for x
    x = 8,654,050,722.96/100,625.04
  6. Step 6: Final answer
    x = 86,002.95

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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.