Home / 126,146.79-173,901.72-99,242.64

Finding the Fourth Proportional to 126,146.79, 173,901.72 and 99,242.64

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Solution

The fourth proportional to 126,146.79, 173,901.72 and 99,242.64 is: 136,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,146.79 : 173,901.72 = 99,242.64 : x
  2. Step 2: Convert to fraction form
    126,146.79/173,901.72 = 99,242.64/x
  3. Step 3: Cross multiply
    126,146.79x = 173,901.72 × 99,242.64
  4. Step 4: Simplify right side
    126,146.79x = 17,258,465,793.34
  5. Step 5: Solve for x
    x = 17,258,465,793.34/126,146.79
  6. Step 6: Final answer
    x = 136,812.56

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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.