Home / 125,272.71-172,875.20-68,682.87

Finding the Fourth Proportional to 125,272.71, 172,875.20 and 68,682.87

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Solution

The fourth proportional to 125,272.71, 172,875.20 and 68,682.87 is: 94,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,272.71 : 172,875.20 = 68,682.87 : x
  2. Step 2: Convert to fraction form
    125,272.71/172,875.20 = 68,682.87/x
  3. Step 3: Cross multiply
    125,272.71x = 172,875.20 × 68,682.87
  4. Step 4: Simplify right side
    125,272.71x = 11,873,564,544.41
  5. Step 5: Solve for x
    x = 11,873,564,544.41/125,272.71
  6. Step 6: Final answer
    x = 94,781.73

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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.