Home / 125,013.78-172,518.96-68,425.14

Finding the Fourth Proportional to 125,013.78, 172,518.96 and 68,425.14

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Solution

The fourth proportional to 125,013.78, 172,518.96 and 68,425.14 is: 94,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,013.78 : 172,518.96 = 68,425.14 : x
  2. Step 2: Convert to fraction form
    125,013.78/172,518.96 = 68,425.14/x
  3. Step 3: Cross multiply
    125,013.78x = 172,518.96 × 68,425.14
  4. Step 4: Simplify right side
    125,013.78x = 11,804,633,990.65
  5. Step 5: Solve for x
    x = 11,804,633,990.65/125,013.78
  6. Step 6: Final answer
    x = 94,426.66

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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.