Home / 128,436.28-192,634.98-34,949.32

Finding the Fourth Proportional to 128,436.28, 192,634.98 and 34,949.32

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Solution

The fourth proportional to 128,436.28, 192,634.98 and 34,949.32 is: 52,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,436.28 : 192,634.98 = 34,949.32 : x
  2. Step 2: Convert to fraction form
    128,436.28/192,634.98 = 34,949.32/x
  3. Step 3: Cross multiply
    128,436.28x = 192,634.98 × 34,949.32
  4. Step 4: Simplify right side
    128,436.28x = 6,732,461,559.21
  5. Step 5: Solve for x
    x = 6,732,461,559.21/128,436.28
  6. Step 6: Final answer
    x = 52,418.69

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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.