Home / 160,822.70-221,790.05-100,398.92

Finding the Fourth Proportional to 160,822.70, 221,790.05 and 100,398.92

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Solution

The fourth proportional to 160,822.70, 221,790.05 and 100,398.92 is: 138,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,822.70 : 221,790.05 = 100,398.92 : x
  2. Step 2: Convert to fraction form
    160,822.70/221,790.05 = 100,398.92/x
  3. Step 3: Cross multiply
    160,822.70x = 221,790.05 × 100,398.92
  4. Step 4: Simplify right side
    160,822.70x = 22,267,479,875.80
  5. Step 5: Solve for x
    x = 22,267,479,875.80/160,822.70
  6. Step 6: Final answer
    x = 138,459.81

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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.