Home / 106,104.18-159,122.25-99,115.50

Finding the Fourth Proportional to 106,104.18, 159,122.25 and 99,115.50

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Solution

The fourth proportional to 106,104.18, 159,122.25 and 99,115.50 is: 148,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,104.18 : 159,122.25 = 99,115.50 : x
  2. Step 2: Convert to fraction form
    106,104.18/159,122.25 = 99,115.50/x
  3. Step 3: Cross multiply
    106,104.18x = 159,122.25 × 99,115.50
  4. Step 4: Simplify right side
    106,104.18x = 15,771,481,369.88
  5. Step 5: Solve for x
    x = 15,771,481,369.88/106,104.18
  6. Step 6: Final answer
    x = 148,641.47

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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.