Home / 128,235.68-192,329.32-34,729.12

Finding the Fourth Proportional to 128,235.68, 192,329.32 and 34,729.12

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Solution

The fourth proportional to 128,235.68, 192,329.32 and 34,729.12 is: 52,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,235.68 : 192,329.32 = 34,729.12 : x
  2. Step 2: Convert to fraction form
    128,235.68/192,329.32 = 34,729.12/x
  3. Step 3: Cross multiply
    128,235.68x = 192,329.32 × 34,729.12
  4. Step 4: Simplify right side
    128,235.68x = 6,679,428,033.80
  5. Step 5: Solve for x
    x = 6,679,428,033.80/128,235.68
  6. Step 6: Final answer
    x = 52,087.13

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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.