Home / 172,284.32-258,162.68-115,915.61

Finding the Fourth Proportional to 172,284.32, 258,162.68 and 115,915.61

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Solution

The fourth proportional to 172,284.32, 258,162.68 and 115,915.61 is: 173,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,284.32 : 258,162.68 = 115,915.61 : x
  2. Step 2: Convert to fraction form
    172,284.32/258,162.68 = 115,915.61/x
  3. Step 3: Cross multiply
    172,284.32x = 258,162.68 × 115,915.61
  4. Step 4: Simplify right side
    172,284.32x = 29,925,082,661.04
  5. Step 5: Solve for x
    x = 29,925,082,661.04/172,284.32
  6. Step 6: Final answer
    x = 173,695.92

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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.