Home / 120,891.29-181,338.75-42,007.41

Finding the Fourth Proportional to 120,891.29, 181,338.75 and 42,007.41

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Solution

The fourth proportional to 120,891.29, 181,338.75 and 42,007.41 is: 63,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,891.29 : 181,338.75 = 42,007.41 : x
  2. Step 2: Convert to fraction form
    120,891.29/181,338.75 = 42,007.41/x
  3. Step 3: Cross multiply
    120,891.29x = 181,338.75 × 42,007.41
  4. Step 4: Simplify right side
    120,891.29x = 7,617,571,220.14
  5. Step 5: Solve for x
    x = 7,617,571,220.14/120,891.29
  6. Step 6: Final answer
    x = 63,011.75

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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.