Home / 159,061.42-219,504.90-87,442.66

Finding the Fourth Proportional to 159,061.42, 219,504.90 and 87,442.66

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Solution

The fourth proportional to 159,061.42, 219,504.90 and 87,442.66 is: 120,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,061.42 : 219,504.90 = 87,442.66 : x
  2. Step 2: Convert to fraction form
    159,061.42/219,504.90 = 87,442.66/x
  3. Step 3: Cross multiply
    159,061.42x = 219,504.90 × 87,442.66
  4. Step 4: Simplify right side
    159,061.42x = 19,194,092,339.03
  5. Step 5: Solve for x
    x = 19,194,092,339.03/159,061.42
  6. Step 6: Final answer
    x = 120,670.95

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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.