Home / 145,830.62-218,499.68-89,553.44

Finding the Fourth Proportional to 145,830.62, 218,499.68 and 89,553.44

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Solution

The fourth proportional to 145,830.62, 218,499.68 and 89,553.44 is: 134,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,830.62 : 218,499.68 = 89,553.44 : x
  2. Step 2: Convert to fraction form
    145,830.62/218,499.68 = 89,553.44/x
  3. Step 3: Cross multiply
    145,830.62x = 218,499.68 × 89,553.44
  4. Step 4: Simplify right side
    145,830.62x = 19,567,397,982.90
  5. Step 5: Solve for x
    x = 19,567,397,982.90/145,830.62
  6. Step 6: Final answer
    x = 134,178.94

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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.