Home / 125,359.72-172,994.34-68,776.36

Finding the Fourth Proportional to 125,359.72, 172,994.34 and 68,776.36

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Solution

The fourth proportional to 125,359.72, 172,994.34 and 68,776.36 is: 94,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,359.72 : 172,994.34 = 68,776.36 : x
  2. Step 2: Convert to fraction form
    125,359.72/172,994.34 = 68,776.36/x
  3. Step 3: Cross multiply
    125,359.72x = 172,994.34 × 68,776.36
  4. Step 4: Simplify right side
    125,359.72x = 11,897,921,005.80
  5. Step 5: Solve for x
    x = 11,897,921,005.80/125,359.72
  6. Step 6: Final answer
    x = 94,910.24

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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.