Home / 134,684.49-185,886.53-81,023.75

Finding the Fourth Proportional to 134,684.49, 185,886.53 and 81,023.75

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Solution

The fourth proportional to 134,684.49, 185,886.53 and 81,023.75 is: 111,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,684.49 : 185,886.53 = 81,023.75 : x
  2. Step 2: Convert to fraction form
    134,684.49/185,886.53 = 81,023.75/x
  3. Step 3: Cross multiply
    134,684.49x = 185,886.53 × 81,023.75
  4. Step 4: Simplify right side
    134,684.49x = 15,061,222,400.54
  5. Step 5: Solve for x
    x = 15,061,222,400.54/134,684.49
  6. Step 6: Final answer
    x = 111,825.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.