Home / 158,780.70-219,119.85-87,167.25

Finding the Fourth Proportional to 158,780.70, 219,119.85 and 87,167.25

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Solution

The fourth proportional to 158,780.70, 219,119.85 and 87,167.25 is: 120,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,780.70 : 219,119.85 = 87,167.25 : x
  2. Step 2: Convert to fraction form
    158,780.70/219,119.85 = 87,167.25/x
  3. Step 3: Cross multiply
    158,780.70x = 219,119.85 × 87,167.25
  4. Step 4: Simplify right side
    158,780.70x = 19,100,074,744.91
  5. Step 5: Solve for x
    x = 19,100,074,744.91/158,780.70
  6. Step 6: Final answer
    x = 120,292.17

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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.