Home / 137,088.20-205,340.70-113,760.20

Finding the Fourth Proportional to 137,088.20, 205,340.70 and 113,760.20

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Solution

The fourth proportional to 137,088.20, 205,340.70 and 113,760.20 is: 170,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,088.20 : 205,340.70 = 113,760.20 : x
  2. Step 2: Convert to fraction form
    137,088.20/205,340.70 = 113,760.20/x
  3. Step 3: Cross multiply
    137,088.20x = 205,340.70 × 113,760.20
  4. Step 4: Simplify right side
    137,088.20x = 23,359,599,100.14
  5. Step 5: Solve for x
    x = 23,359,599,100.14/137,088.20
  6. Step 6: Final answer
    x = 170,398.32

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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.