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Finding the Fourth Proportional to 156,754, 235,139.91 and 50,147.32

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Solution

The fourth proportional to 156,754, 235,139.91 and 50,147.32 is: 75,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,754 : 235,139.91 = 50,147.32 : x
  2. Step 2: Convert to fraction form
    156,754/235,139.91 = 50,147.32/x
  3. Step 3: Cross multiply
    156,754x = 235,139.91 × 50,147.32
  4. Step 4: Simplify right side
    156,754x = 11,791,636,311.54
  5. Step 5: Solve for x
    x = 11,791,636,311.54/156,754
  6. Step 6: Final answer
    x = 75,223.83

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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.