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Finding the Fourth Proportional to 162,564, 243,624.60 and 91,520.52

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Solution

The fourth proportional to 162,564, 243,624.60 and 91,520.52 is: 137,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,564 : 243,624.60 = 91,520.52 : x
  2. Step 2: Convert to fraction form
    162,564/243,624.60 = 91,520.52/x
  3. Step 3: Cross multiply
    162,564x = 243,624.60 × 91,520.52
  4. Step 4: Simplify right side
    162,564x = 22,296,650,076.79
  5. Step 5: Solve for x
    x = 22,296,650,076.79/162,564
  6. Step 6: Final answer
    x = 137,156.14

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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.