Home / 111,512.39-153,817.11-66,158.27

Finding the Fourth Proportional to 111,512.39, 153,817.11 and 66,158.27

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Solution

The fourth proportional to 111,512.39, 153,817.11 and 66,158.27 is: 91,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,512.39 : 153,817.11 = 66,158.27 : x
  2. Step 2: Convert to fraction form
    111,512.39/153,817.11 = 66,158.27/x
  3. Step 3: Cross multiply
    111,512.39x = 153,817.11 × 66,158.27
  4. Step 4: Simplify right side
    111,512.39x = 10,176,273,894.00
  5. Step 5: Solve for x
    x = 10,176,273,894.00/111,512.39
  6. Step 6: Final answer
    x = 91,256.89

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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.