Home / 158,941.72-219,343.44-87,326.38

Finding the Fourth Proportional to 158,941.72, 219,343.44 and 87,326.38

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Solution

The fourth proportional to 158,941.72, 219,343.44 and 87,326.38 is: 120,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,941.72 : 219,343.44 = 87,326.38 : x
  2. Step 2: Convert to fraction form
    158,941.72/219,343.44 = 87,326.38/x
  3. Step 3: Cross multiply
    158,941.72x = 219,343.44 × 87,326.38
  4. Step 4: Simplify right side
    158,941.72x = 19,154,468,591.95
  5. Step 5: Solve for x
    x = 19,154,468,591.95/158,941.72
  6. Step 6: Final answer
    x = 120,512.53

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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.