Home / 112,872.74-155,742.44-66,923.89

Finding the Fourth Proportional to 112,872.74, 155,742.44 and 66,923.89

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Solution

The fourth proportional to 112,872.74, 155,742.44 and 66,923.89 is: 92,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,872.74 : 155,742.44 = 66,923.89 : x
  2. Step 2: Convert to fraction form
    112,872.74/155,742.44 = 66,923.89/x
  3. Step 3: Cross multiply
    112,872.74x = 155,742.44 × 66,923.89
  4. Step 4: Simplify right side
    112,872.74x = 10,422,889,755.58
  5. Step 5: Solve for x
    x = 10,422,889,755.58/112,872.74
  6. Step 6: Final answer
    x = 92,341.96

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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.