Home / 134,623.92-185,780.40-74,194.43

Finding the Fourth Proportional to 134,623.92, 185,780.40 and 74,194.43

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Solution

The fourth proportional to 134,623.92, 185,780.40 and 74,194.43 is: 102,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,623.92 : 185,780.40 = 74,194.43 : x
  2. Step 2: Convert to fraction form
    134,623.92/185,780.40 = 74,194.43/x
  3. Step 3: Cross multiply
    134,623.92x = 185,780.40 × 74,194.43
  4. Step 4: Simplify right side
    134,623.92x = 13,783,871,103.90
  5. Step 5: Solve for x
    x = 13,783,871,103.90/134,623.92
  6. Step 6: Final answer
    x = 102,387.98

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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.