Home / 154,421.70-213,104.12-88,974.36

Finding the Fourth Proportional to 154,421.70, 213,104.12 and 88,974.36

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Solution

The fourth proportional to 154,421.70, 213,104.12 and 88,974.36 is: 122,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,421.70 : 213,104.12 = 88,974.36 : x
  2. Step 2: Convert to fraction form
    154,421.70/213,104.12 = 88,974.36/x
  3. Step 3: Cross multiply
    154,421.70x = 213,104.12 × 88,974.36
  4. Step 4: Simplify right side
    154,421.70x = 18,960,802,245.49
  5. Step 5: Solve for x
    x = 18,960,802,245.49/154,421.70
  6. Step 6: Final answer
    x = 122,785.87

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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.