Home / 111,331.44-153,660.58-102,364.76

Finding the Fourth Proportional to 111,331.44, 153,660.58 and 102,364.76

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Solution

The fourth proportional to 111,331.44, 153,660.58 and 102,364.76 is: 141,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,331.44 : 153,660.58 = 102,364.76 : x
  2. Step 2: Convert to fraction form
    111,331.44/153,660.58 = 102,364.76/x
  3. Step 3: Cross multiply
    111,331.44x = 153,660.58 × 102,364.76
  4. Step 4: Simplify right side
    111,331.44x = 15,729,428,393.16
  5. Step 5: Solve for x
    x = 15,729,428,393.16/111,331.44
  6. Step 6: Final answer
    x = 141,284.69

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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.