Home / 124,630.27-172,133.17-90,790.09

Finding the Fourth Proportional to 124,630.27, 172,133.17 and 90,790.09

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Solution

The fourth proportional to 124,630.27, 172,133.17 and 90,790.09 is: 125,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,630.27 : 172,133.17 = 90,790.09 : x
  2. Step 2: Convert to fraction form
    124,630.27/172,133.17 = 90,790.09/x
  3. Step 3: Cross multiply
    124,630.27x = 172,133.17 × 90,790.09
  4. Step 4: Simplify right side
    124,630.27x = 15,627,985,338.98
  5. Step 5: Solve for x
    x = 15,627,985,338.98/124,630.27
  6. Step 6: Final answer
    x = 125,394.78

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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.