Home / 121,339.47-182,091.26-42,454.38

Finding the Fourth Proportional to 121,339.47, 182,091.26 and 42,454.38

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Solution

The fourth proportional to 121,339.47, 182,091.26 and 42,454.38 is: 63,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,339.47 : 182,091.26 = 42,454.38 : x
  2. Step 2: Convert to fraction form
    121,339.47/182,091.26 = 42,454.38/x
  3. Step 3: Cross multiply
    121,339.47x = 182,091.26 × 42,454.38
  4. Step 4: Simplify right side
    121,339.47x = 7,730,571,546.72
  5. Step 5: Solve for x
    x = 7,730,571,546.72/121,339.47
  6. Step 6: Final answer
    x = 63,710.28

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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.