Home / 160,721.90-221,801.46-89,108.58

Finding the Fourth Proportional to 160,721.90, 221,801.46 and 89,108.58

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Solution

The fourth proportional to 160,721.90, 221,801.46 and 89,108.58 is: 122,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,721.90 : 221,801.46 = 89,108.58 : x
  2. Step 2: Convert to fraction form
    160,721.90/221,801.46 = 89,108.58/x
  3. Step 3: Cross multiply
    160,721.90x = 221,801.46 × 89,108.58
  4. Step 4: Simplify right side
    160,721.90x = 19,764,413,142.53
  5. Step 5: Solve for x
    x = 19,764,413,142.53/160,721.90
  6. Step 6: Final answer
    x = 122,972.74

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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.