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Finding the Fourth Proportional to 152,737.60, 210,748.08 and 89,078.08

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Solution

The fourth proportional to 152,737.60, 210,748.08 and 89,078.08 is: 122,910.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,737.60 : 210,748.08 = 89,078.08 : x
  2. Step 2: Convert to fraction form
    152,737.60/210,748.08 = 89,078.08/x
  3. Step 3: Cross multiply
    152,737.60x = 210,748.08 × 89,078.08
  4. Step 4: Simplify right side
    152,737.60x = 18,773,034,330.09
  5. Step 5: Solve for x
    x = 18,773,034,330.09/152,737.60
  6. Step 6: Final answer
    x = 122,910.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.