Home / 111,441.45-153,751.80-63,660.97

Finding the Fourth Proportional to 111,441.45, 153,751.80 and 63,660.97

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Solution

The fourth proportional to 111,441.45, 153,751.80 and 63,660.97 is: 87,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,441.45 : 153,751.80 = 63,660.97 : x
  2. Step 2: Convert to fraction form
    111,441.45/153,751.80 = 63,660.97/x
  3. Step 3: Cross multiply
    111,441.45x = 153,751.80 × 63,660.97
  4. Step 4: Simplify right side
    111,441.45x = 9,787,988,727.25
  5. Step 5: Solve for x
    x = 9,787,988,727.25/111,441.45
  6. Step 6: Final answer
    x = 87,830.77

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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.