Home / 131,225.29-180,997.59-87,595.84

Finding the Fourth Proportional to 131,225.29, 180,997.59 and 87,595.84

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Solution

The fourth proportional to 131,225.29, 180,997.59 and 87,595.84 is: 120,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,225.29 : 180,997.59 = 87,595.84 : x
  2. Step 2: Convert to fraction form
    131,225.29/180,997.59 = 87,595.84/x
  3. Step 3: Cross multiply
    131,225.29x = 180,997.59 × 87,595.84
  4. Step 4: Simplify right side
    131,225.29x = 15,854,635,934.03
  5. Step 5: Solve for x
    x = 15,854,635,934.03/131,225.29
  6. Step 6: Final answer
    x = 120,819.97

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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.