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Finding the Fourth Proportional to 162,187.65, 243,319.41 and 55,572.75

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Solution

The fourth proportional to 162,187.65, 243,319.41 and 55,572.75 is: 83,372.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,187.65 : 243,319.41 = 55,572.75 : x
  2. Step 2: Convert to fraction form
    162,187.65/243,319.41 = 55,572.75/x
  3. Step 3: Cross multiply
    162,187.65x = 243,319.41 × 55,572.75
  4. Step 4: Simplify right side
    162,187.65x = 13,521,928,742.08
  5. Step 5: Solve for x
    x = 13,521,928,742.08/162,187.65
  6. Step 6: Final answer
    x = 83,372.12

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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.