Home / 129,630.52-178,889.34-73,060.12

Finding the Fourth Proportional to 129,630.52, 178,889.34 and 73,060.12

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Solution

The fourth proportional to 129,630.52, 178,889.34 and 73,060.12 is: 100,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,630.52 : 178,889.34 = 73,060.12 : x
  2. Step 2: Convert to fraction form
    129,630.52/178,889.34 = 73,060.12/x
  3. Step 3: Cross multiply
    129,630.52x = 178,889.34 × 73,060.12
  4. Step 4: Simplify right side
    129,630.52x = 13,069,676,647.12
  5. Step 5: Solve for x
    x = 13,069,676,647.12/129,630.52
  6. Step 6: Final answer
    x = 100,822.53

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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.