Home / 125,215.72-172,789.86-68,623.08

Finding the Fourth Proportional to 125,215.72, 172,789.86 and 68,623.08

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Solution

The fourth proportional to 125,215.72, 172,789.86 and 68,623.08 is: 94,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,215.72 : 172,789.86 = 68,623.08 : x
  2. Step 2: Convert to fraction form
    125,215.72/172,789.86 = 68,623.08/x
  3. Step 3: Cross multiply
    125,215.72x = 172,789.86 × 68,623.08
  4. Step 4: Simplify right side
    125,215.72x = 11,857,372,385.97
  5. Step 5: Solve for x
    x = 11,857,372,385.97/125,215.72
  6. Step 6: Final answer
    x = 94,695.56

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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.