Home / 199,278.96-275,103.15-138,071.57

Finding the Fourth Proportional to 199,278.96, 275,103.15 and 138,071.57

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Solution

The fourth proportional to 199,278.96, 275,103.15 and 138,071.57 is: 190,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,278.96 : 275,103.15 = 138,071.57 : x
  2. Step 2: Convert to fraction form
    199,278.96/275,103.15 = 138,071.57/x
  3. Step 3: Cross multiply
    199,278.96x = 275,103.15 × 138,071.57
  4. Step 4: Simplify right side
    199,278.96x = 37,983,924,520.20
  5. Step 5: Solve for x
    x = 37,983,924,520.20/199,278.96
  6. Step 6: Final answer
    x = 190,606.80

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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.