Home / 125,141.80-172,654.34-76,725.80

Finding the Fourth Proportional to 125,141.80, 172,654.34 and 76,725.80

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Solution

The fourth proportional to 125,141.80, 172,654.34 and 76,725.80 is: 105,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,141.80 : 172,654.34 = 76,725.80 : x
  2. Step 2: Convert to fraction form
    125,141.80/172,654.34 = 76,725.80/x
  3. Step 3: Cross multiply
    125,141.80x = 172,654.34 × 76,725.80
  4. Step 4: Simplify right side
    125,141.80x = 13,247,042,359.97
  5. Step 5: Solve for x
    x = 13,247,042,359.97/125,141.80
  6. Step 6: Final answer
    x = 105,856.26

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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.