Home / 78,336.26-108,151.17-73,852.91

Finding the Fourth Proportional to 78,336.26, 108,151.17 and 73,852.91

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Solution

The fourth proportional to 78,336.26, 108,151.17 and 73,852.91 is: 101,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,336.26 : 108,151.17 = 73,852.91 : x
  2. Step 2: Convert to fraction form
    78,336.26/108,151.17 = 73,852.91/x
  3. Step 3: Cross multiply
    78,336.26x = 108,151.17 × 73,852.91
  4. Step 4: Simplify right side
    78,336.26x = 7,987,279,443.75
  5. Step 5: Solve for x
    x = 7,987,279,443.75/78,336.26
  6. Step 6: Final answer
    x = 101,961.45

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1.5x scale

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.