Home / 121,144.29-181,546.34-103,282.58

Finding the Fourth Proportional to 121,144.29, 181,546.34 and 103,282.58

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Solution

The fourth proportional to 121,144.29, 181,546.34 and 103,282.58 is: 154,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,144.29 : 181,546.34 = 103,282.58 : x
  2. Step 2: Convert to fraction form
    121,144.29/181,546.34 = 103,282.58/x
  3. Step 3: Cross multiply
    121,144.29x = 181,546.34 × 103,282.58
  4. Step 4: Simplify right side
    121,144.29x = 18,750,572,960.61
  5. Step 5: Solve for x
    x = 18,750,572,960.61/121,144.29
  6. Step 6: Final answer
    x = 154,778.84

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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.