Home / 121,456.60-182,141.16-51,341.36

Finding the Fourth Proportional to 121,456.60, 182,141.16 and 51,341.36

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Solution

The fourth proportional to 121,456.60, 182,141.16 and 51,341.36 is: 76,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,456.60 : 182,141.16 = 51,341.36 : x
  2. Step 2: Convert to fraction form
    121,456.60/182,141.16 = 51,341.36/x
  3. Step 3: Cross multiply
    121,456.60x = 182,141.16 × 51,341.36
  4. Step 4: Simplify right side
    121,456.60x = 9,351,374,866.38
  5. Step 5: Solve for x
    x = 9,351,374,866.38/121,456.60
  6. Step 6: Final answer
    x = 76,993.55

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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.