Home / 112,265.61-154,872.76-75,979.72

Finding the Fourth Proportional to 112,265.61, 154,872.76 and 75,979.72

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Solution

The fourth proportional to 112,265.61, 154,872.76 and 75,979.72 is: 104,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,265.61 : 154,872.76 = 75,979.72 : x
  2. Step 2: Convert to fraction form
    112,265.61/154,872.76 = 75,979.72/x
  3. Step 3: Cross multiply
    112,265.61x = 154,872.76 × 75,979.72
  4. Step 4: Simplify right side
    112,265.61x = 11,767,188,940.43
  5. Step 5: Solve for x
    x = 11,767,188,940.43/112,265.61
  6. Step 6: Final answer
    x = 104,815.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.