Home / 160,436.28-221,404.71-87,837.96

Finding the Fourth Proportional to 160,436.28, 221,404.71 and 87,837.96

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Solution

The fourth proportional to 160,436.28, 221,404.71 and 87,837.96 is: 121,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,436.28 : 221,404.71 = 87,837.96 : x
  2. Step 2: Convert to fraction form
    160,436.28/221,404.71 = 87,837.96/x
  3. Step 3: Cross multiply
    160,436.28x = 221,404.71 × 87,837.96
  4. Step 4: Simplify right side
    160,436.28x = 19,447,738,060.79
  5. Step 5: Solve for x
    x = 19,447,738,060.79/160,436.28
  6. Step 6: Final answer
    x = 121,217.83

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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.