Home / 120,335.49-166,010.81-72,562.28

Finding the Fourth Proportional to 120,335.49, 166,010.81 and 72,562.28

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Solution

The fourth proportional to 120,335.49, 166,010.81 and 72,562.28 is: 100,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,335.49 : 166,010.81 = 72,562.28 : x
  2. Step 2: Convert to fraction form
    120,335.49/166,010.81 = 72,562.28/x
  3. Step 3: Cross multiply
    120,335.49x = 166,010.81 × 72,562.28
  4. Step 4: Simplify right side
    120,335.49x = 12,046,121,685.38
  5. Step 5: Solve for x
    x = 12,046,121,685.38/120,335.49
  6. Step 6: Final answer
    x = 100,104.48

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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.