Home / 103,134.11-142,297.62-59,515.61

Finding the Fourth Proportional to 103,134.11, 142,297.62 and 59,515.61

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Solution

The fourth proportional to 103,134.11, 142,297.62 and 59,515.61 is: 82,115.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.11 : 142,297.62 = 59,515.61 : x
  2. Step 2: Convert to fraction form
    103,134.11/142,297.62 = 59,515.61/x
  3. Step 3: Cross multiply
    103,134.11x = 142,297.62 × 59,515.61
  4. Step 4: Simplify right side
    103,134.11x = 8,468,928,646.78
  5. Step 5: Solve for x
    x = 8,468,928,646.78/103,134.11
  6. Step 6: Final answer
    x = 82,115.69

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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.