Home / 159,049.22-219,490.65-87,432.26

Finding the Fourth Proportional to 159,049.22, 219,490.65 and 87,432.26

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Solution

The fourth proportional to 159,049.22, 219,490.65 and 87,432.26 is: 120,658.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,049.22 : 219,490.65 = 87,432.26 : x
  2. Step 2: Convert to fraction form
    159,049.22/219,490.65 = 87,432.26/x
  3. Step 3: Cross multiply
    159,049.22x = 219,490.65 × 87,432.26
  4. Step 4: Simplify right side
    159,049.22x = 19,190,563,578.37
  5. Step 5: Solve for x
    x = 19,190,563,578.37/159,049.22
  6. Step 6: Final answer
    x = 120,658.02

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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.