Home / 112,820.74-155,687.28-67,523.68

Finding the Fourth Proportional to 112,820.74, 155,687.28 and 67,523.68

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Solution

The fourth proportional to 112,820.74, 155,687.28 and 67,523.68 is: 93,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,820.74 : 155,687.28 = 67,523.68 : x
  2. Step 2: Convert to fraction form
    112,820.74/155,687.28 = 67,523.68/x
  3. Step 3: Cross multiply
    112,820.74x = 155,687.28 × 67,523.68
  4. Step 4: Simplify right side
    112,820.74x = 10,512,578,074.79
  5. Step 5: Solve for x
    x = 10,512,578,074.79/112,820.74
  6. Step 6: Final answer
    x = 93,179.48

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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.