Home / 120,884.22-181,326.42-45,987.12

Finding the Fourth Proportional to 120,884.22, 181,326.42 and 45,987.12

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Solution

The fourth proportional to 120,884.22, 181,326.42 and 45,987.12 is: 68,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,884.22 : 181,326.42 = 45,987.12 : x
  2. Step 2: Convert to fraction form
    120,884.22/181,326.42 = 45,987.12/x
  3. Step 3: Cross multiply
    120,884.22x = 181,326.42 × 45,987.12
  4. Step 4: Simplify right side
    120,884.22x = 8,338,679,835.71
  5. Step 5: Solve for x
    x = 8,338,679,835.71/120,884.22
  6. Step 6: Final answer
    x = 68,980.71

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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.