Home / 136,493.28-188,335.80-76,062.42

Finding the Fourth Proportional to 136,493.28, 188,335.80 and 76,062.42

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Solution

The fourth proportional to 136,493.28, 188,335.80 and 76,062.42 is: 104,952.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,493.28 : 188,335.80 = 76,062.42 : x
  2. Step 2: Convert to fraction form
    136,493.28/188,335.80 = 76,062.42/x
  3. Step 3: Cross multiply
    136,493.28x = 188,335.80 × 76,062.42
  4. Step 4: Simplify right side
    136,493.28x = 14,325,276,720.64
  5. Step 5: Solve for x
    x = 14,325,276,720.64/136,493.28
  6. Step 6: Final answer
    x = 104,952.25

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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.