Home / 158,284.56-218,438.16-86,665.12

Finding the Fourth Proportional to 158,284.56, 218,438.16 and 86,665.12

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Solution

The fourth proportional to 158,284.56, 218,438.16 and 86,665.12 is: 119,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,284.56 : 218,438.16 = 86,665.12 : x
  2. Step 2: Convert to fraction form
    158,284.56/218,438.16 = 86,665.12/x
  3. Step 3: Cross multiply
    158,284.56x = 218,438.16 × 86,665.12
  4. Step 4: Simplify right side
    158,284.56x = 18,930,969,348.98
  5. Step 5: Solve for x
    x = 18,930,969,348.98/158,284.56
  6. Step 6: Final answer
    x = 119,600.86

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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.