Home / 120,879.17-181,352.78-42,001.37

Finding the Fourth Proportional to 120,879.17, 181,352.78 and 42,001.37

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Solution

The fourth proportional to 120,879.17, 181,352.78 and 42,001.37 is: 63,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,879.17 : 181,352.78 = 42,001.37 : x
  2. Step 2: Convert to fraction form
    120,879.17/181,352.78 = 42,001.37/x
  3. Step 3: Cross multiply
    120,879.17x = 181,352.78 × 42,001.37
  4. Step 4: Simplify right side
    120,879.17x = 7,617,065,213.31
  5. Step 5: Solve for x
    x = 7,617,065,213.31/120,879.17
  6. Step 6: Final answer
    x = 63,013.88

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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.