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Finding the Fourth Proportional to 145,956.96, 218,508.96 and 131,949.36

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Solution

The fourth proportional to 145,956.96, 218,508.96 and 131,949.36 is: 197,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,956.96 : 218,508.96 = 131,949.36 : x
  2. Step 2: Convert to fraction form
    145,956.96/218,508.96 = 131,949.36/x
  3. Step 3: Cross multiply
    145,956.96x = 218,508.96 × 131,949.36
  4. Step 4: Simplify right side
    145,956.96x = 28,832,117,426.27
  5. Step 5: Solve for x
    x = 28,832,117,426.27/145,956.96
  6. Step 6: Final answer
    x = 197,538.49

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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.