Home / 134,521.92-185,638.56-74,091.36

Finding the Fourth Proportional to 134,521.92, 185,638.56 and 74,091.36

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Solution

The fourth proportional to 134,521.92, 185,638.56 and 74,091.36 is: 102,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,521.92 : 185,638.56 = 74,091.36 : x
  2. Step 2: Convert to fraction form
    134,521.92/185,638.56 = 74,091.36/x
  3. Step 3: Cross multiply
    134,521.92x = 185,638.56 × 74,091.36
  4. Step 4: Simplify right side
    134,521.92x = 13,754,213,378.84
  5. Step 5: Solve for x
    x = 13,754,213,378.84/134,521.92
  6. Step 6: Final answer
    x = 102,245.15

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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.