Home / 159,375.15-219,941.87-87,748.47

Finding the Fourth Proportional to 159,375.15, 219,941.87 and 87,748.47

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Solution

The fourth proportional to 159,375.15, 219,941.87 and 87,748.47 is: 121,095.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,375.15 : 219,941.87 = 87,748.47 : x
  2. Step 2: Convert to fraction form
    159,375.15/219,941.87 = 87,748.47/x
  3. Step 3: Cross multiply
    159,375.15x = 219,941.87 × 87,748.47
  4. Step 4: Simplify right side
    159,375.15x = 19,299,562,142.70
  5. Step 5: Solve for x
    x = 19,299,562,142.70/159,375.15
  6. Step 6: Final answer
    x = 121,095.18

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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.