Home / 126,125.40-173,872.22-99,221.20

Finding the Fourth Proportional to 126,125.40, 173,872.22 and 99,221.20

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Solution

The fourth proportional to 126,125.40, 173,872.22 and 99,221.20 is: 136,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,125.40 : 173,872.22 = 99,221.20 : x
  2. Step 2: Convert to fraction form
    126,125.40/173,872.22 = 99,221.20/x
  3. Step 3: Cross multiply
    126,125.40x = 173,872.22 × 99,221.20
  4. Step 4: Simplify right side
    126,125.40x = 17,251,810,315.06
  5. Step 5: Solve for x
    x = 17,251,810,315.06/126,125.40
  6. Step 6: Final answer
    x = 136,783.00

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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.