Home / 120,886.06-181,329.12-45,988.90

Finding the Fourth Proportional to 120,886.06, 181,329.12 and 45,988.90

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Solution

The fourth proportional to 120,886.06, 181,329.12 and 45,988.90 is: 68,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,886.06 : 181,329.12 = 45,988.90 : x
  2. Step 2: Convert to fraction form
    120,886.06/181,329.12 = 45,988.90/x
  3. Step 3: Cross multiply
    120,886.06x = 181,329.12 × 45,988.90
  4. Step 4: Simplify right side
    120,886.06x = 8,339,126,766.77
  5. Step 5: Solve for x
    x = 8,339,126,766.77/120,886.06
  6. Step 6: Final answer
    x = 68,983.36

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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.