Home / 126,127.40-173,874.98-99,223.20

Finding the Fourth Proportional to 126,127.40, 173,874.98 and 99,223.20

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Solution

The fourth proportional to 126,127.40, 173,874.98 and 99,223.20 is: 136,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,127.40 : 173,874.98 = 99,223.20 : x
  2. Step 2: Convert to fraction form
    126,127.40/173,874.98 = 99,223.20/x
  3. Step 3: Cross multiply
    126,127.40x = 173,874.98 × 99,223.20
  4. Step 4: Simplify right side
    126,127.40x = 17,252,431,915.54
  5. Step 5: Solve for x
    x = 17,252,431,915.54/126,127.40
  6. Step 6: Final answer
    x = 136,785.76

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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.