Home / 102,973.35-142,003.38-80,304.08

Finding the Fourth Proportional to 102,973.35, 142,003.38 and 80,304.08

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Solution

The fourth proportional to 102,973.35, 142,003.38 and 80,304.08 is: 110,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,973.35 : 142,003.38 = 80,304.08 : x
  2. Step 2: Convert to fraction form
    102,973.35/142,003.38 = 80,304.08/x
  3. Step 3: Cross multiply
    102,973.35x = 142,003.38 × 80,304.08
  4. Step 4: Simplify right side
    102,973.35x = 11,403,451,142.80
  5. Step 5: Solve for x
    x = 11,403,451,142.80/102,973.35
  6. Step 6: Final answer
    x = 110,741.77

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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.