Home / 158,274.44-218,419.36-86,661.12

Finding the Fourth Proportional to 158,274.44, 218,419.36 and 86,661.12

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Solution

The fourth proportional to 158,274.44, 218,419.36 and 86,661.12 is: 119,592.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,274.44 : 218,419.36 = 86,661.12 : x
  2. Step 2: Convert to fraction form
    158,274.44/218,419.36 = 86,661.12/x
  3. Step 3: Cross multiply
    158,274.44x = 218,419.36 × 86,661.12
  4. Step 4: Simplify right side
    158,274.44x = 18,928,466,367.28
  5. Step 5: Solve for x
    x = 18,928,466,367.28/158,274.44
  6. Step 6: Final answer
    x = 119,592.69

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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.