Home / 111,400.76-153,713.78-62,980.56

Finding the Fourth Proportional to 111,400.76, 153,713.78 and 62,980.56

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Solution

The fourth proportional to 111,400.76, 153,713.78 and 62,980.56 is: 86,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,400.76 : 153,713.78 = 62,980.56 : x
  2. Step 2: Convert to fraction form
    111,400.76/153,713.78 = 62,980.56/x
  3. Step 3: Cross multiply
    111,400.76x = 153,713.78 × 62,980.56
  4. Step 4: Simplify right side
    111,400.76x = 9,680,979,944.12
  5. Step 5: Solve for x
    x = 9,680,979,944.12/111,400.76
  6. Step 6: Final answer
    x = 86,902.28

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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.