Home / 120,918.12-181,377.60-42,033

Finding the Fourth Proportional to 120,918.12, 181,377.60 and 42,033

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Solution

The fourth proportional to 120,918.12, 181,377.60 and 42,033 is: 63,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,918.12 : 181,377.60 = 42,033 : x
  2. Step 2: Convert to fraction form
    120,918.12/181,377.60 = 42,033/x
  3. Step 3: Cross multiply
    120,918.12x = 181,377.60 × 42,033
  4. Step 4: Simplify right side
    120,918.12x = 7,623,844,660.80
  5. Step 5: Solve for x
    x = 7,623,844,660.80/120,918.12
  6. Step 6: Final answer
    x = 63,049.65

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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.