Home / 128,261.03-192,391.55-34,766.78

Finding the Fourth Proportional to 128,261.03, 192,391.55 and 34,766.78

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Solution

The fourth proportional to 128,261.03, 192,391.55 and 34,766.78 is: 52,150.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,261.03 : 192,391.55 = 34,766.78 : x
  2. Step 2: Convert to fraction form
    128,261.03/192,391.55 = 34,766.78/x
  3. Step 3: Cross multiply
    128,261.03x = 192,391.55 × 34,766.78
  4. Step 4: Simplify right side
    128,261.03x = 6,688,835,130.23
  5. Step 5: Solve for x
    x = 6,688,835,130.23/128,261.03
  6. Step 6: Final answer
    x = 52,150.17

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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.