Home / 145,590.52-218,439.18-61,371.88

Finding the Fourth Proportional to 145,590.52, 218,439.18 and 61,371.88

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Solution

The fourth proportional to 145,590.52, 218,439.18 and 61,371.88 is: 92,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,590.52 : 218,439.18 = 61,371.88 : x
  2. Step 2: Convert to fraction form
    145,590.52/218,439.18 = 61,371.88/x
  3. Step 3: Cross multiply
    145,590.52x = 218,439.18 × 61,371.88
  4. Step 4: Simplify right side
    145,590.52x = 13,406,023,142.26
  5. Step 5: Solve for x
    x = 13,406,023,142.26/145,590.52
  6. Step 6: Final answer
    x = 92,080.33

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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.