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Finding the Fourth Proportional to 162,502.70, 243,811.78 and 72,537.26

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Solution

The fourth proportional to 162,502.70, 243,811.78 and 72,537.26 is: 108,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,502.70 : 243,811.78 = 72,537.26 : x
  2. Step 2: Convert to fraction form
    162,502.70/243,811.78 = 72,537.26/x
  3. Step 3: Cross multiply
    162,502.70x = 243,811.78 × 72,537.26
  4. Step 4: Simplify right side
    162,502.70x = 17,685,437,076.52
  5. Step 5: Solve for x
    x = 17,685,437,076.52/162,502.70
  6. Step 6: Final answer
    x = 108,831.65

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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.