Home / 121,338.47-182,089.76-42,453.38

Finding the Fourth Proportional to 121,338.47, 182,089.76 and 42,453.38

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Solution

The fourth proportional to 121,338.47, 182,089.76 and 42,453.38 is: 63,708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,338.47 : 182,089.76 = 42,453.38 : x
  2. Step 2: Convert to fraction form
    121,338.47/182,089.76 = 42,453.38/x
  3. Step 3: Cross multiply
    121,338.47x = 182,089.76 × 42,453.38
  4. Step 4: Simplify right side
    121,338.47x = 7,730,326,018.35
  5. Step 5: Solve for x
    x = 7,730,326,018.35/121,338.47
  6. Step 6: Final answer
    x = 63,708.78

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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.