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Finding the Fourth Proportional to 145,162.31, 217,654.97 and 65,184.73

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Solution

The fourth proportional to 145,162.31, 217,654.97 and 65,184.73 is: 97,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162.31 : 217,654.97 = 65,184.73 : x
  2. Step 2: Convert to fraction form
    145,162.31/217,654.97 = 65,184.73/x
  3. Step 3: Cross multiply
    145,162.31x = 217,654.97 × 65,184.73
  4. Step 4: Simplify right side
    145,162.31x = 14,187,779,582.55
  5. Step 5: Solve for x
    x = 14,187,779,582.55/145,162.31
  6. Step 6: Final answer
    x = 97,737.35

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1.5x scale

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.