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Finding the Fourth Proportional to 129,595.77, 193,954.73 and 79,707.47

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Solution

The fourth proportional to 129,595.77, 193,954.73 and 79,707.47 is: 119,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,595.77 : 193,954.73 = 79,707.47 : x
  2. Step 2: Convert to fraction form
    129,595.77/193,954.73 = 79,707.47/x
  3. Step 3: Cross multiply
    129,595.77x = 193,954.73 × 79,707.47
  4. Step 4: Simplify right side
    129,595.77x = 15,459,639,454.52
  5. Step 5: Solve for x
    x = 15,459,639,454.52/129,595.77
  6. Step 6: Final answer
    x = 119,291.24

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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.