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Finding the Fourth Proportional to 145,819.62, 218,483.19 and 89,542.44

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Solution

The fourth proportional to 145,819.62, 218,483.19 and 89,542.44 is: 134,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,819.62 : 218,483.19 = 89,542.44 : x
  2. Step 2: Convert to fraction form
    145,819.62/218,483.19 = 89,542.44/x
  3. Step 3: Cross multiply
    145,819.62x = 218,483.19 × 89,542.44
  4. Step 4: Simplify right side
    145,819.62x = 19,563,517,931.58
  5. Step 5: Solve for x
    x = 19,563,517,931.58/145,819.62
  6. Step 6: Final answer
    x = 134,162.45

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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.