Home / 151,735.19-209,363.30-87,191.96

Finding the Fourth Proportional to 151,735.19, 209,363.30 and 87,191.96

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Solution

The fourth proportional to 151,735.19, 209,363.30 and 87,191.96 is: 120,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,735.19 : 209,363.30 = 87,191.96 : x
  2. Step 2: Convert to fraction form
    151,735.19/209,363.30 = 87,191.96/x
  3. Step 3: Cross multiply
    151,735.19x = 209,363.30 × 87,191.96
  4. Step 4: Simplify right side
    151,735.19x = 18,254,794,996.29
  5. Step 5: Solve for x
    x = 18,254,794,996.29/151,735.19
  6. Step 6: Final answer
    x = 120,306.93

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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.