Home / 159,079.89-219,524.60-87,459.35

Finding the Fourth Proportional to 159,079.89, 219,524.60 and 87,459.35

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Solution

The fourth proportional to 159,079.89, 219,524.60 and 87,459.35 is: 120,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,079.89 : 219,524.60 = 87,459.35 : x
  2. Step 2: Convert to fraction form
    159,079.89/219,524.60 = 87,459.35/x
  3. Step 3: Cross multiply
    159,079.89x = 219,524.60 × 87,459.35
  4. Step 4: Simplify right side
    159,079.89x = 19,199,479,592.47
  5. Step 5: Solve for x
    x = 19,199,479,592.47/159,079.89
  6. Step 6: Final answer
    x = 120,690.80

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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.