Home / 103,375.22-142,680.04-63,080.36

Finding the Fourth Proportional to 103,375.22, 142,680.04 and 63,080.36

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Solution

The fourth proportional to 103,375.22, 142,680.04 and 63,080.36 is: 87,064.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,375.22 : 142,680.04 = 63,080.36 : x
  2. Step 2: Convert to fraction form
    103,375.22/142,680.04 = 63,080.36/x
  3. Step 3: Cross multiply
    103,375.22x = 142,680.04 × 63,080.36
  4. Step 4: Simplify right side
    103,375.22x = 9,000,308,288.01
  5. Step 5: Solve for x
    x = 9,000,308,288.01/103,375.22
  6. Step 6: Final answer
    x = 87,064.47

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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.