Home / 120,923.60-181,418.04-42,042.20

Finding the Fourth Proportional to 120,923.60, 181,418.04 and 42,042.20

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Solution

The fourth proportional to 120,923.60, 181,418.04 and 42,042.20 is: 63,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,923.60 : 181,418.04 = 42,042.20 : x
  2. Step 2: Convert to fraction form
    120,923.60/181,418.04 = 42,042.20/x
  3. Step 3: Cross multiply
    120,923.60x = 181,418.04 × 42,042.20
  4. Step 4: Simplify right side
    120,923.60x = 7,627,213,521.29
  5. Step 5: Solve for x
    x = 7,627,213,521.29/120,923.60
  6. Step 6: Final answer
    x = 63,074.65

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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.