Home / 128,265.64-192,423.66-39,504.04

Finding the Fourth Proportional to 128,265.64, 192,423.66 and 39,504.04

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Solution

The fourth proportional to 128,265.64, 192,423.66 and 39,504.04 is: 59,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,265.64 : 192,423.66 = 39,504.04 : x
  2. Step 2: Convert to fraction form
    128,265.64/192,423.66 = 39,504.04/x
  3. Step 3: Cross multiply
    128,265.64x = 192,423.66 × 39,504.04
  4. Step 4: Simplify right side
    128,265.64x = 7,601,511,961.59
  5. Step 5: Solve for x
    x = 7,601,511,961.59/128,265.64
  6. Step 6: Final answer
    x = 59,263.82

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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.