Home / 127,162.91-175,498.85-81,264.87

Finding the Fourth Proportional to 127,162.91, 175,498.85 and 81,264.87

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Solution

The fourth proportional to 127,162.91, 175,498.85 and 81,264.87 is: 112,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,162.91 : 175,498.85 = 81,264.87 : x
  2. Step 2: Convert to fraction form
    127,162.91/175,498.85 = 81,264.87/x
  3. Step 3: Cross multiply
    127,162.91x = 175,498.85 × 81,264.87
  4. Step 4: Simplify right side
    127,162.91x = 14,261,891,433.56
  5. Step 5: Solve for x
    x = 14,261,891,433.56/127,162.91
  6. Step 6: Final answer
    x = 112,154.49

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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.