Home / 135,123.90-186,523.56-120,952.14

Finding the Fourth Proportional to 135,123.90, 186,523.56 and 120,952.14

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Solution

The fourth proportional to 135,123.90, 186,523.56 and 120,952.14 is: 166,961.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,123.90 : 186,523.56 = 120,952.14 : x
  2. Step 2: Convert to fraction form
    135,123.90/186,523.56 = 120,952.14/x
  3. Step 3: Cross multiply
    135,123.90x = 186,523.56 × 120,952.14
  4. Step 4: Simplify right side
    135,123.90x = 22,560,423,742.42
  5. Step 5: Solve for x
    x = 22,560,423,742.42/135,123.90
  6. Step 6: Final answer
    x = 166,961.02

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1.5x scale

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.