Home / 111,352.38-153,672.57-66,057.18

Finding the Fourth Proportional to 111,352.38, 153,672.57 and 66,057.18

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Solution

The fourth proportional to 111,352.38, 153,672.57 and 66,057.18 is: 91,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,352.38 : 153,672.57 = 66,057.18 : x
  2. Step 2: Convert to fraction form
    111,352.38/153,672.57 = 66,057.18/x
  3. Step 3: Cross multiply
    111,352.38x = 153,672.57 × 66,057.18
  4. Step 4: Simplify right side
    111,352.38x = 10,151,176,617.55
  5. Step 5: Solve for x
    x = 10,151,176,617.55/111,352.38
  6. Step 6: Final answer
    x = 91,162.64

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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.