Home / 117,184.69-161,718.18-66,199.57

Finding the Fourth Proportional to 117,184.69, 161,718.18 and 66,199.57

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Solution

The fourth proportional to 117,184.69, 161,718.18 and 66,199.57 is: 91,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,184.69 : 161,718.18 = 66,199.57 : x
  2. Step 2: Convert to fraction form
    117,184.69/161,718.18 = 66,199.57/x
  3. Step 3: Cross multiply
    117,184.69x = 161,718.18 × 66,199.57
  4. Step 4: Simplify right side
    117,184.69x = 10,705,672,837.59
  5. Step 5: Solve for x
    x = 10,705,672,837.59/117,184.69
  6. Step 6: Final answer
    x = 91,357.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.