Home / 129,060.34-178,105.37-71,703.36

Finding the Fourth Proportional to 129,060.34, 178,105.37 and 71,703.36

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Solution

The fourth proportional to 129,060.34, 178,105.37 and 71,703.36 is: 98,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,060.34 : 178,105.37 = 71,703.36 : x
  2. Step 2: Convert to fraction form
    129,060.34/178,105.37 = 71,703.36/x
  3. Step 3: Cross multiply
    129,060.34x = 178,105.37 × 71,703.36
  4. Step 4: Simplify right side
    129,060.34x = 12,770,753,104.53
  5. Step 5: Solve for x
    x = 12,770,753,104.53/129,060.34
  6. Step 6: Final answer
    x = 98,951.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.