Home / 103,087.24-154,535.70-71,512.20

Finding the Fourth Proportional to 103,087.24, 154,535.70 and 71,512.20

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Solution

The fourth proportional to 103,087.24, 154,535.70 and 71,512.20 is: 107,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,087.24 : 154,535.70 = 71,512.20 : x
  2. Step 2: Convert to fraction form
    103,087.24/154,535.70 = 71,512.20/x
  3. Step 3: Cross multiply
    103,087.24x = 154,535.70 × 71,512.20
  4. Step 4: Simplify right side
    103,087.24x = 11,051,187,885.54
  5. Step 5: Solve for x
    x = 11,051,187,885.54/103,087.24
  6. Step 6: Final answer
    x = 107,202.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.