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Finding the Fourth Proportional to 160,637, 221,683.92 and 89,010.32

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Solution

The fourth proportional to 160,637, 221,683.92 and 89,010.32 is: 122,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,637 : 221,683.92 = 89,010.32 : x
  2. Step 2: Convert to fraction form
    160,637/221,683.92 = 89,010.32/x
  3. Step 3: Cross multiply
    160,637x = 221,683.92 × 89,010.32
  4. Step 4: Simplify right side
    160,637x = 19,732,156,658.05
  5. Step 5: Solve for x
    x = 19,732,156,658.05/160,637
  6. Step 6: Final answer
    x = 122,836.93

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1.5x scale

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.