Home / 160,471.35-221,453.91-87,877.29

Finding the Fourth Proportional to 160,471.35, 221,453.91 and 87,877.29

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Solution

The fourth proportional to 160,471.35, 221,453.91 and 87,877.29 is: 121,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,471.35 : 221,453.91 = 87,877.29 : x
  2. Step 2: Convert to fraction form
    160,471.35/221,453.91 = 87,877.29/x
  3. Step 3: Cross multiply
    160,471.35x = 221,453.91 × 87,877.29
  4. Step 4: Simplify right side
    160,471.35x = 19,460,769,470.70
  5. Step 5: Solve for x
    x = 19,460,769,470.70/160,471.35
  6. Step 6: Final answer
    x = 121,272.55

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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.