Home / 109,990.09-165,013.08-50,868.19

Finding the Fourth Proportional to 109,990.09, 165,013.08 and 50,868.19

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Solution

The fourth proportional to 109,990.09, 165,013.08 and 50,868.19 is: 76,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,990.09 : 165,013.08 = 50,868.19 : x
  2. Step 2: Convert to fraction form
    109,990.09/165,013.08 = 50,868.19/x
  3. Step 3: Cross multiply
    109,990.09x = 165,013.08 × 50,868.19
  4. Step 4: Simplify right side
    109,990.09x = 8,393,916,705.93
  5. Step 5: Solve for x
    x = 8,393,916,705.93/109,990.09
  6. Step 6: Final answer
    x = 76,315.21

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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.