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Finding the Fourth Proportional to 159,756.87, 239,509.05 and 79,753.77

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Solution

The fourth proportional to 159,756.87, 239,509.05 and 79,753.77 is: 119,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,756.87 : 239,509.05 = 79,753.77 : x
  2. Step 2: Convert to fraction form
    159,756.87/239,509.05 = 79,753.77/x
  3. Step 3: Cross multiply
    159,756.87x = 239,509.05 × 79,753.77
  4. Step 4: Simplify right side
    159,756.87x = 19,101,749,686.62
  5. Step 5: Solve for x
    x = 19,101,749,686.62/159,756.87
  6. Step 6: Final answer
    x = 119,567.63

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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.