Home / 160,781.20-221,878.65-89,167.84

Finding the Fourth Proportional to 160,781.20, 221,878.65 and 89,167.84

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Solution

The fourth proportional to 160,781.20, 221,878.65 and 89,167.84 is: 123,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,781.20 : 221,878.65 = 89,167.84 : x
  2. Step 2: Convert to fraction form
    160,781.20/221,878.65 = 89,167.84/x
  3. Step 3: Cross multiply
    160,781.20x = 221,878.65 × 89,167.84
  4. Step 4: Simplify right side
    160,781.20x = 19,784,439,962.62
  5. Step 5: Solve for x
    x = 19,784,439,962.62/160,781.20
  6. Step 6: Final answer
    x = 123,051.95

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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.