Home / 160,617.20-221,651.52-89,001.86

Finding the Fourth Proportional to 160,617.20, 221,651.52 and 89,001.86

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Solution

The fourth proportional to 160,617.20, 221,651.52 and 89,001.86 is: 122,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,617.20 : 221,651.52 = 89,001.86 : x
  2. Step 2: Convert to fraction form
    160,617.20/221,651.52 = 89,001.86/x
  3. Step 3: Cross multiply
    160,617.20x = 221,651.52 × 89,001.86
  4. Step 4: Simplify right side
    160,617.20x = 19,727,397,551.83
  5. Step 5: Solve for x
    x = 19,727,397,551.83/160,617.20
  6. Step 6: Final answer
    x = 122,822.45

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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.