Home / 121,087.49-181,532.82-42,257.08

Finding the Fourth Proportional to 121,087.49, 181,532.82 and 42,257.08

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Solution

The fourth proportional to 121,087.49, 181,532.82 and 42,257.08 is: 63,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,087.49 : 181,532.82 = 42,257.08 : x
  2. Step 2: Convert to fraction form
    121,087.49/181,532.82 = 42,257.08/x
  3. Step 3: Cross multiply
    121,087.49x = 181,532.82 × 42,257.08
  4. Step 4: Simplify right side
    121,087.49x = 7,671,045,884.06
  5. Step 5: Solve for x
    x = 7,671,045,884.06/121,087.49
  6. Step 6: Final answer
    x = 63,351.27

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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.