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Finding the Fourth Proportional to 162,355.59, 243,407.63 and 112,290.91

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Solution

The fourth proportional to 162,355.59, 243,407.63 and 112,290.91 is: 168,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,355.59 : 243,407.63 = 112,290.91 : x
  2. Step 2: Convert to fraction form
    162,355.59/243,407.63 = 112,290.91/x
  3. Step 3: Cross multiply
    162,355.59x = 243,407.63 × 112,290.91
  4. Step 4: Simplify right side
    162,355.59x = 27,332,463,945.85
  5. Step 5: Solve for x
    x = 27,332,463,945.85/162,355.59
  6. Step 6: Final answer
    x = 168,349.39

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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.