Home / 66,115.12-99,172.70-16,867.12

Finding the Fourth Proportional to 66,115.12, 99,172.70 and 16,867.12

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Solution

The fourth proportional to 66,115.12, 99,172.70 and 16,867.12 is: 25,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,115.12 : 99,172.70 = 16,867.12 : x
  2. Step 2: Convert to fraction form
    66,115.12/99,172.70 = 16,867.12/x
  3. Step 3: Cross multiply
    66,115.12x = 99,172.70 × 16,867.12
  4. Step 4: Simplify right side
    66,115.12x = 1,672,757,831.62
  5. Step 5: Solve for x
    x = 1,672,757,831.62/66,115.12
  6. Step 6: Final answer
    x = 25,300.69

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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.