Home / 179,818.40-269,695.20-113,139.20

Finding the Fourth Proportional to 179,818.40, 269,695.20 and 113,139.20

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Solution

The fourth proportional to 179,818.40, 269,695.20 and 113,139.20 is: 169,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,818.40 : 269,695.20 = 113,139.20 : x
  2. Step 2: Convert to fraction form
    179,818.40/269,695.20 = 113,139.20/x
  3. Step 3: Cross multiply
    179,818.40x = 269,695.20 × 113,139.20
  4. Step 4: Simplify right side
    179,818.40x = 30,513,099,171.84
  5. Step 5: Solve for x
    x = 30,513,099,171.84/179,818.40
  6. Step 6: Final answer
    x = 169,688.41

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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.