Home / 231,087.32-318,902.72-135,595.64

Finding the Fourth Proportional to 231,087.32, 318,902.72 and 135,595.64

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Solution

The fourth proportional to 231,087.32, 318,902.72 and 135,595.64 is: 187,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,087.32 : 318,902.72 = 135,595.64 : x
  2. Step 2: Convert to fraction form
    231,087.32/318,902.72 = 135,595.64/x
  3. Step 3: Cross multiply
    231,087.32x = 318,902.72 × 135,595.64
  4. Step 4: Simplify right side
    231,087.32x = 43,241,818,416.14
  5. Step 5: Solve for x
    x = 43,241,818,416.14/231,087.32
  6. Step 6: Final answer
    x = 187,123.28

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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.