Home / 126,126.40-173,873.60-99,222.20

Finding the Fourth Proportional to 126,126.40, 173,873.60 and 99,222.20

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Solution

The fourth proportional to 126,126.40, 173,873.60 and 99,222.20 is: 136,784.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.40 : 173,873.60 = 99,222.20 : x
  2. Step 2: Convert to fraction form
    126,126.40/173,873.60 = 99,222.20/x
  3. Step 3: Cross multiply
    126,126.40x = 173,873.60 × 99,222.20
  4. Step 4: Simplify right side
    126,126.40x = 17,252,121,113.92
  5. Step 5: Solve for x
    x = 17,252,121,113.92/126,126.40
  6. Step 6: Final answer
    x = 136,784.38

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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.