Home / 126,513.36-189,801.16-89,146.38

Finding the Fourth Proportional to 126,513.36, 189,801.16 and 89,146.38

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Solution

The fourth proportional to 126,513.36, 189,801.16 and 89,146.38 is: 133,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,513.36 : 189,801.16 = 89,146.38 : x
  2. Step 2: Convert to fraction form
    126,513.36/189,801.16 = 89,146.38/x
  3. Step 3: Cross multiply
    126,513.36x = 189,801.16 × 89,146.38
  4. Step 4: Simplify right side
    126,513.36x = 16,920,086,333.80
  5. Step 5: Solve for x
    x = 16,920,086,333.80/126,513.36
  6. Step 6: Final answer
    x = 133,741.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.