Home / 129,754.22-179,063.97-72,393.13

Finding the Fourth Proportional to 129,754.22, 179,063.97 and 72,393.13

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Solution

The fourth proportional to 129,754.22, 179,063.97 and 72,393.13 is: 99,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,754.22 : 179,063.97 = 72,393.13 : x
  2. Step 2: Convert to fraction form
    129,754.22/179,063.97 = 72,393.13/x
  3. Step 3: Cross multiply
    129,754.22x = 179,063.97 × 72,393.13
  4. Step 4: Simplify right side
    129,754.22x = 12,963,000,363.21
  5. Step 5: Solve for x
    x = 12,963,000,363.21/129,754.22
  6. Step 6: Final answer
    x = 99,904.27

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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.