Home / 133,208.27-199,640.16-99,665.15

Finding the Fourth Proportional to 133,208.27, 199,640.16 and 99,665.15

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Solution

The fourth proportional to 133,208.27, 199,640.16 and 99,665.15 is: 149,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,208.27 : 199,640.16 = 99,665.15 : x
  2. Step 2: Convert to fraction form
    133,208.27/199,640.16 = 99,665.15/x
  3. Step 3: Cross multiply
    133,208.27x = 199,640.16 × 99,665.15
  4. Step 4: Simplify right side
    133,208.27x = 19,897,165,994.10
  5. Step 5: Solve for x
    x = 19,897,165,994.10/133,208.27
  6. Step 6: Final answer
    x = 149,368.85

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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.