Home / 156,031.55-215,329.04-88,044.54

Finding the Fourth Proportional to 156,031.55, 215,329.04 and 88,044.54

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Solution

The fourth proportional to 156,031.55, 215,329.04 and 88,044.54 is: 121,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,031.55 : 215,329.04 = 88,044.54 : x
  2. Step 2: Convert to fraction form
    156,031.55/215,329.04 = 88,044.54/x
  3. Step 3: Cross multiply
    156,031.55x = 215,329.04 × 88,044.54
  4. Step 4: Simplify right side
    156,031.55x = 18,958,546,275.44
  5. Step 5: Solve for x
    x = 18,958,546,275.44/156,031.55
  6. Step 6: Final answer
    x = 121,504.57

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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.