Home / 106,229.80-159,344.70-99,231.40

Finding the Fourth Proportional to 106,229.80, 159,344.70 and 99,231.40

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Solution

The fourth proportional to 106,229.80, 159,344.70 and 99,231.40 is: 148,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,229.80 : 159,344.70 = 99,231.40 : x
  2. Step 2: Convert to fraction form
    106,229.80/159,344.70 = 99,231.40/x
  3. Step 3: Cross multiply
    106,229.80x = 159,344.70 × 99,231.40
  4. Step 4: Simplify right side
    106,229.80x = 15,811,997,663.58
  5. Step 5: Solve for x
    x = 15,811,997,663.58/106,229.80
  6. Step 6: Final answer
    x = 148,847.10

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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.