Home / 122,250.90-168,761.52-76,995.39

Finding the Fourth Proportional to 122,250.90, 168,761.52 and 76,995.39

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Solution

The fourth proportional to 122,250.90, 168,761.52 and 76,995.39 is: 106,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,250.90 : 168,761.52 = 76,995.39 : x
  2. Step 2: Convert to fraction form
    122,250.90/168,761.52 = 76,995.39/x
  3. Step 3: Cross multiply
    122,250.90x = 168,761.52 × 76,995.39
  4. Step 4: Simplify right side
    122,250.90x = 12,993,859,049.39
  5. Step 5: Solve for x
    x = 12,993,859,049.39/122,250.90
  6. Step 6: Final answer
    x = 106,288.45

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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.