Home / 160,217.80-221,105.28-87,625

Finding the Fourth Proportional to 160,217.80, 221,105.28 and 87,625

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Solution

The fourth proportional to 160,217.80, 221,105.28 and 87,625 is: 120,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,217.80 : 221,105.28 = 87,625 : x
  2. Step 2: Convert to fraction form
    160,217.80/221,105.28 = 87,625/x
  3. Step 3: Cross multiply
    160,217.80x = 221,105.28 × 87,625
  4. Step 4: Simplify right side
    160,217.80x = 19,374,350,160
  5. Step 5: Solve for x
    x = 19,374,350,160/160,217.80
  6. Step 6: Final answer
    x = 120,925.08

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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.