Home / 128,397.42-192,595.56-34,902.90

Finding the Fourth Proportional to 128,397.42, 192,595.56 and 34,902.90

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Solution

The fourth proportional to 128,397.42, 192,595.56 and 34,902.90 is: 52,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,397.42 : 192,595.56 = 34,902.90 : x
  2. Step 2: Convert to fraction form
    128,397.42/192,595.56 = 34,902.90/x
  3. Step 3: Cross multiply
    128,397.42x = 192,595.56 × 34,902.90
  4. Step 4: Simplify right side
    128,397.42x = 6,722,143,571.12
  5. Step 5: Solve for x
    x = 6,722,143,571.12/128,397.42
  6. Step 6: Final answer
    x = 52,354.20

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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.