Home / 99,015.11-148,369.77-66,868.19

Finding the Fourth Proportional to 99,015.11, 148,369.77 and 66,868.19

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Solution

The fourth proportional to 99,015.11, 148,369.77 and 66,868.19 is: 100,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.11 : 148,369.77 = 66,868.19 : x
  2. Step 2: Convert to fraction form
    99,015.11/148,369.77 = 66,868.19/x
  3. Step 3: Cross multiply
    99,015.11x = 148,369.77 × 66,868.19
  4. Step 4: Simplify right side
    99,015.11x = 9,921,217,228.77
  5. Step 5: Solve for x
    x = 9,921,217,228.77/99,015.11
  6. Step 6: Final answer
    x = 100,199.03

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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.