Home / 112,150.85-154,750.41-66,827.70

Finding the Fourth Proportional to 112,150.85, 154,750.41 and 66,827.70

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Solution

The fourth proportional to 112,150.85, 154,750.41 and 66,827.70 is: 92,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,150.85 : 154,750.41 = 66,827.70 : x
  2. Step 2: Convert to fraction form
    112,150.85/154,750.41 = 66,827.70/x
  3. Step 3: Cross multiply
    112,150.85x = 154,750.41 × 66,827.70
  4. Step 4: Simplify right side
    112,150.85x = 10,341,613,974.36
  5. Step 5: Solve for x
    x = 10,341,613,974.36/112,150.85
  6. Step 6: Final answer
    x = 92,211.65

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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.