Home / 104,319.38-143,981.16-68,508.47

Finding the Fourth Proportional to 104,319.38, 143,981.16 and 68,508.47

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Solution

The fourth proportional to 104,319.38, 143,981.16 and 68,508.47 is: 94,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,319.38 : 143,981.16 = 68,508.47 : x
  2. Step 2: Convert to fraction form
    104,319.38/143,981.16 = 68,508.47/x
  3. Step 3: Cross multiply
    104,319.38x = 143,981.16 × 68,508.47
  4. Step 4: Simplify right side
    104,319.38x = 9,863,928,980.43
  5. Step 5: Solve for x
    x = 9,863,928,980.43/104,319.38
  6. Step 6: Final answer
    x = 94,555.10

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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.