Home / 160,869.12-221,996.54-89,247.92

Finding the Fourth Proportional to 160,869.12, 221,996.54 and 89,247.92

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Solution

The fourth proportional to 160,869.12, 221,996.54 and 89,247.92 is: 123,160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,869.12 : 221,996.54 = 89,247.92 : x
  2. Step 2: Convert to fraction form
    160,869.12/221,996.54 = 89,247.92/x
  3. Step 3: Cross multiply
    160,869.12x = 221,996.54 × 89,247.92
  4. Step 4: Simplify right side
    160,869.12x = 19,812,727,885.97
  5. Step 5: Solve for x
    x = 19,812,727,885.97/160,869.12
  6. Step 6: Final answer
    x = 123,160.54

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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.