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Finding the Fourth Proportional to 145,589.52, 218,437.68 and 61,370.88

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Solution

The fourth proportional to 145,589.52, 218,437.68 and 61,370.88 is: 92,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,589.52 : 218,437.68 = 61,370.88 : x
  2. Step 2: Convert to fraction form
    145,589.52/218,437.68 = 61,370.88/x
  3. Step 3: Cross multiply
    145,589.52x = 218,437.68 × 61,370.88
  4. Step 4: Simplify right side
    145,589.52x = 13,405,712,646.76
  5. Step 5: Solve for x
    x = 13,405,712,646.76/145,589.52
  6. Step 6: Final answer
    x = 92,078.83

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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.