Home / 134,540.28-185,664.72-74,109.52

Finding the Fourth Proportional to 134,540.28, 185,664.72 and 74,109.52

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Solution

The fourth proportional to 134,540.28, 185,664.72 and 74,109.52 is: 102,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,540.28 : 185,664.72 = 74,109.52 : x
  2. Step 2: Convert to fraction form
    134,540.28/185,664.72 = 74,109.52/x
  3. Step 3: Cross multiply
    134,540.28x = 185,664.72 × 74,109.52
  4. Step 4: Simplify right side
    134,540.28x = 13,759,523,790.13
  5. Step 5: Solve for x
    x = 13,759,523,790.13/134,540.28
  6. Step 6: Final answer
    x = 102,270.66

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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.