Home / 112,376.25-154,934.51-80,147.61

Finding the Fourth Proportional to 112,376.25, 154,934.51 and 80,147.61

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Solution

The fourth proportional to 112,376.25, 154,934.51 and 80,147.61 is: 110,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,376.25 : 154,934.51 = 80,147.61 : x
  2. Step 2: Convert to fraction form
    112,376.25/154,934.51 = 80,147.61/x
  3. Step 3: Cross multiply
    112,376.25x = 154,934.51 × 80,147.61
  4. Step 4: Simplify right side
    112,376.25x = 12,417,630,282.28
  5. Step 5: Solve for x
    x = 12,417,630,282.28/112,376.25
  6. Step 6: Final answer
    x = 110,500.49

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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.