Home / 122,003.97-168,341.55-76,655.68

Finding the Fourth Proportional to 122,003.97, 168,341.55 and 76,655.68

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Solution

The fourth proportional to 122,003.97, 168,341.55 and 76,655.68 is: 105,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,003.97 : 168,341.55 = 76,655.68 : x
  2. Step 2: Convert to fraction form
    122,003.97/168,341.55 = 76,655.68/x
  3. Step 3: Cross multiply
    122,003.97x = 168,341.55 × 76,655.68
  4. Step 4: Simplify right side
    122,003.97x = 12,904,335,795.86
  5. Step 5: Solve for x
    x = 12,904,335,795.86/122,003.97
  6. Step 6: Final answer
    x = 105,769.80

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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.