Home / 125,128.75-172,677.72-68,542.15

Finding the Fourth Proportional to 125,128.75, 172,677.72 and 68,542.15

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Solution

The fourth proportional to 125,128.75, 172,677.72 and 68,542.15 is: 94,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,128.75 : 172,677.72 = 68,542.15 : x
  2. Step 2: Convert to fraction form
    125,128.75/172,677.72 = 68,542.15/x
  3. Step 3: Cross multiply
    125,128.75x = 172,677.72 × 68,542.15
  4. Step 4: Simplify right side
    125,128.75x = 11,835,702,185.90
  5. Step 5: Solve for x
    x = 11,835,702,185.90/125,128.75
  6. Step 6: Final answer
    x = 94,588.19

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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.