Home / 129,070.79-193,387.73-79,046.41

Finding the Fourth Proportional to 129,070.79, 193,387.73 and 79,046.41

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Solution

The fourth proportional to 129,070.79, 193,387.73 and 79,046.41 is: 118,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,070.79 : 193,387.73 = 79,046.41 : x
  2. Step 2: Convert to fraction form
    129,070.79/193,387.73 = 79,046.41/x
  3. Step 3: Cross multiply
    129,070.79x = 193,387.73 × 79,046.41
  4. Step 4: Simplify right side
    129,070.79x = 15,286,604,956.87
  5. Step 5: Solve for x
    x = 15,286,604,956.87/129,070.79
  6. Step 6: Final answer
    x = 118,435.82

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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.