Home / 112,266.11-154,923.36-66,920.72

Finding the Fourth Proportional to 112,266.11, 154,923.36 and 66,920.72

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Solution

The fourth proportional to 112,266.11, 154,923.36 and 66,920.72 is: 92,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,266.11 : 154,923.36 = 66,920.72 : x
  2. Step 2: Convert to fraction form
    112,266.11/154,923.36 = 66,920.72/x
  3. Step 3: Cross multiply
    112,266.11x = 154,923.36 × 66,920.72
  4. Step 4: Simplify right side
    112,266.11x = 10,367,582,021.40
  5. Step 5: Solve for x
    x = 10,367,582,021.40/112,266.11
  6. Step 6: Final answer
    x = 92,348.28

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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.