Home / 111,336.88-153,651.18-66,041.68

Finding the Fourth Proportional to 111,336.88, 153,651.18 and 66,041.68

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Solution

The fourth proportional to 111,336.88, 153,651.18 and 66,041.68 is: 91,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,336.88 : 153,651.18 = 66,041.68 : x
  2. Step 2: Convert to fraction form
    111,336.88/153,651.18 = 66,041.68/x
  3. Step 3: Cross multiply
    111,336.88x = 153,651.18 × 66,041.68
  4. Step 4: Simplify right side
    111,336.88x = 10,147,382,061.18
  5. Step 5: Solve for x
    x = 10,147,382,061.18/111,336.88
  6. Step 6: Final answer
    x = 91,141.25

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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.