Home / 160,856.43-221,982.13-89,236.45

Finding the Fourth Proportional to 160,856.43, 221,982.13 and 89,236.45

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Solution

The fourth proportional to 160,856.43, 221,982.13 and 89,236.45 is: 123,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,856.43 : 221,982.13 = 89,236.45 : x
  2. Step 2: Convert to fraction form
    160,856.43/221,982.13 = 89,236.45/x
  3. Step 3: Cross multiply
    160,856.43x = 221,982.13 × 89,236.45
  4. Step 4: Simplify right side
    160,856.43x = 19,808,897,467.73
  5. Step 5: Solve for x
    x = 19,808,897,467.73/160,856.43
  6. Step 6: Final answer
    x = 123,146.44

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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.