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Finding the Fourth Proportional to 139,575.90, 209,279.57 and 62,624.85

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Solution

The fourth proportional to 139,575.90, 209,279.57 and 62,624.85 is: 93,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,575.90 : 209,279.57 = 62,624.85 : x
  2. Step 2: Convert to fraction form
    139,575.90/209,279.57 = 62,624.85/x
  3. Step 3: Cross multiply
    139,575.90x = 209,279.57 × 62,624.85
  4. Step 4: Simplify right side
    139,575.90x = 13,106,101,366.19
  5. Step 5: Solve for x
    x = 13,106,101,366.19/139,575.90
  6. Step 6: Final answer
    x = 93,899.46

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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.