Home / 125,128.76-172,677.72-68,542.16

Finding the Fourth Proportional to 125,128.76, 172,677.72 and 68,542.16

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Solution

The fourth proportional to 125,128.76, 172,677.72 and 68,542.16 is: 94,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,128.76 : 172,677.72 = 68,542.16 : x
  2. Step 2: Convert to fraction form
    125,128.76/172,677.72 = 68,542.16/x
  3. Step 3: Cross multiply
    125,128.76x = 172,677.72 × 68,542.16
  4. Step 4: Simplify right side
    125,128.76x = 11,835,703,912.68
  5. Step 5: Solve for x
    x = 11,835,703,912.68/125,128.76
  6. Step 6: Final answer
    x = 94,588.20

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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.