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Finding the Fourth Proportional to 162,560, 243,618.60 and 91,516.52

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Solution

The fourth proportional to 162,560, 243,618.60 and 91,516.52 is: 137,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,560 : 243,618.60 = 91,516.52 : x
  2. Step 2: Convert to fraction form
    162,560/243,618.60 = 91,516.52/x
  3. Step 3: Cross multiply
    162,560x = 243,618.60 × 91,516.52
  4. Step 4: Simplify right side
    162,560x = 22,295,126,479.27
  5. Step 5: Solve for x
    x = 22,295,126,479.27/162,560
  6. Step 6: Final answer
    x = 137,150.14

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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.