Home / 129,056.95-193,708.56-79,234.36

Finding the Fourth Proportional to 129,056.95, 193,708.56 and 79,234.36

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Solution

The fourth proportional to 129,056.95, 193,708.56 and 79,234.36 is: 118,927.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,056.95 : 193,708.56 = 79,234.36 : x
  2. Step 2: Convert to fraction form
    129,056.95/193,708.56 = 79,234.36/x
  3. Step 3: Cross multiply
    129,056.95x = 193,708.56 × 79,234.36
  4. Step 4: Simplify right side
    129,056.95x = 15,348,373,293.85
  5. Step 5: Solve for x
    x = 15,348,373,293.85/129,056.95
  6. Step 6: Final answer
    x = 118,927.14

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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.