Home / 66,119.13-99,178.70-16,871.13

Finding the Fourth Proportional to 66,119.13, 99,178.70 and 16,871.13

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Solution

The fourth proportional to 66,119.13, 99,178.70 and 16,871.13 is: 25,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,119.13 : 99,178.70 = 16,871.13 : x
  2. Step 2: Convert to fraction form
    66,119.13/99,178.70 = 16,871.13/x
  3. Step 3: Cross multiply
    66,119.13x = 99,178.70 × 16,871.13
  4. Step 4: Simplify right side
    66,119.13x = 1,673,256,740.93
  5. Step 5: Solve for x
    x = 1,673,256,740.93/66,119.13
  6. Step 6: Final answer
    x = 25,306.70

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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.