Home / 104,281.76-143,832.38-68,458.70

Finding the Fourth Proportional to 104,281.76, 143,832.38 and 68,458.70

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Solution

The fourth proportional to 104,281.76, 143,832.38 and 68,458.70 is: 94,422.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,281.76 : 143,832.38 = 68,458.70 : x
  2. Step 2: Convert to fraction form
    104,281.76/143,832.38 = 68,458.70/x
  3. Step 3: Cross multiply
    104,281.76x = 143,832.38 × 68,458.70
  4. Step 4: Simplify right side
    104,281.76x = 9,846,577,752.71
  5. Step 5: Solve for x
    x = 9,846,577,752.71/104,281.76
  6. Step 6: Final answer
    x = 94,422.82

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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.