Home / 120,209.27-180,261.30-57,047.49

Finding the Fourth Proportional to 120,209.27, 180,261.30 and 57,047.49

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Solution

The fourth proportional to 120,209.27, 180,261.30 and 57,047.49 is: 85,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,209.27 : 180,261.30 = 57,047.49 : x
  2. Step 2: Convert to fraction form
    120,209.27/180,261.30 = 57,047.49/x
  3. Step 3: Cross multiply
    120,209.27x = 180,261.30 × 57,047.49
  4. Step 4: Simplify right side
    120,209.27x = 10,283,454,602.17
  5. Step 5: Solve for x
    x = 10,283,454,602.17/120,209.27
  6. Step 6: Final answer
    x = 85,546.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.