Home / 103,287.08-142,483.05-68,891.04

Finding the Fourth Proportional to 103,287.08, 142,483.05 and 68,891.04

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Solution

The fourth proportional to 103,287.08, 142,483.05 and 68,891.04 is: 95,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,287.08 : 142,483.05 = 68,891.04 : x
  2. Step 2: Convert to fraction form
    103,287.08/142,483.05 = 68,891.04/x
  3. Step 3: Cross multiply
    103,287.08x = 142,483.05 × 68,891.04
  4. Step 4: Simplify right side
    103,287.08x = 9,815,805,496.87
  5. Step 5: Solve for x
    x = 9,815,805,496.87/103,287.08
  6. Step 6: Final answer
    x = 95,034.20

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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.