Home / 154,556.40-231,615.90-135,748.20

Finding the Fourth Proportional to 154,556.40, 231,615.90 and 135,748.20

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Solution

The fourth proportional to 154,556.40, 231,615.90 and 135,748.20 is: 203,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,556.40 : 231,615.90 = 135,748.20 : x
  2. Step 2: Convert to fraction form
    154,556.40/231,615.90 = 135,748.20/x
  3. Step 3: Cross multiply
    154,556.40x = 231,615.90 × 135,748.20
  4. Step 4: Simplify right side
    154,556.40x = 31,441,441,516.38
  5. Step 5: Solve for x
    x = 31,441,441,516.38/154,556.40
  6. Step 6: Final answer
    x = 203,430.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.