Home / 159,081.18-219,526.38-87,460.68

Finding the Fourth Proportional to 159,081.18, 219,526.38 and 87,460.68

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Solution

The fourth proportional to 159,081.18, 219,526.38 and 87,460.68 is: 120,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081.18 : 219,526.38 = 87,460.68 : x
  2. Step 2: Convert to fraction form
    159,081.18/219,526.38 = 87,460.68/x
  3. Step 3: Cross multiply
    159,081.18x = 219,526.38 × 87,460.68
  4. Step 4: Simplify right side
    159,081.18x = 19,199,926,472.74
  5. Step 5: Solve for x
    x = 19,199,926,472.74/159,081.18
  6. Step 6: Final answer
    x = 120,692.63

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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.