Home / 111,269.22-153,551.68-65,969.40

Finding the Fourth Proportional to 111,269.22, 153,551.68 and 65,969.40

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Solution

The fourth proportional to 111,269.22, 153,551.68 and 65,969.40 is: 91,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,269.22 : 153,551.68 = 65,969.40 : x
  2. Step 2: Convert to fraction form
    111,269.22/153,551.68 = 65,969.40/x
  3. Step 3: Cross multiply
    111,269.22x = 153,551.68 × 65,969.40
  4. Step 4: Simplify right side
    111,269.22x = 10,129,712,198.59
  5. Step 5: Solve for x
    x = 10,129,712,198.59/111,269.22
  6. Step 6: Final answer
    x = 91,037.86

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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.