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Finding the Fourth Proportional to 156,068.76, 234,142 and 45,260.76

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Solution

The fourth proportional to 156,068.76, 234,142 and 45,260.76 is: 67,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,068.76 : 234,142 = 45,260.76 : x
  2. Step 2: Convert to fraction form
    156,068.76/234,142 = 45,260.76/x
  3. Step 3: Cross multiply
    156,068.76x = 234,142 × 45,260.76
  4. Step 4: Simplify right side
    156,068.76x = 10,597,444,867.92
  5. Step 5: Solve for x
    x = 10,597,444,867.92/156,068.76
  6. Step 6: Final answer
    x = 67,902.41

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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.