Home / 122,317.17-168,726.02-76,923.15

Finding the Fourth Proportional to 122,317.17, 168,726.02 and 76,923.15

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Solution

The fourth proportional to 122,317.17, 168,726.02 and 76,923.15 is: 106,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,317.17 : 168,726.02 = 76,923.15 : x
  2. Step 2: Convert to fraction form
    122,317.17/168,726.02 = 76,923.15/x
  3. Step 3: Cross multiply
    122,317.17x = 168,726.02 × 76,923.15
  4. Step 4: Simplify right side
    122,317.17x = 12,978,936,560.75
  5. Step 5: Solve for x
    x = 12,978,936,560.75/122,317.17
  6. Step 6: Final answer
    x = 106,108.87

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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.