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Finding the Fourth Proportional to 144,834.60, 217,251.90 and 89,538.60

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Solution

The fourth proportional to 144,834.60, 217,251.90 and 89,538.60 is: 134,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,834.60 : 217,251.90 = 89,538.60 : x
  2. Step 2: Convert to fraction form
    144,834.60/217,251.90 = 89,538.60/x
  3. Step 3: Cross multiply
    144,834.60x = 217,251.90 × 89,538.60
  4. Step 4: Simplify right side
    144,834.60x = 19,452,430,973.34
  5. Step 5: Solve for x
    x = 19,452,430,973.34/144,834.60
  6. Step 6: Final answer
    x = 134,307.90

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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.