Home / 158,091.54-218,171.51-86,471.55

Finding the Fourth Proportional to 158,091.54, 218,171.51 and 86,471.55

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Solution

The fourth proportional to 158,091.54, 218,171.51 and 86,471.55 is: 119,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,091.54 : 218,171.51 = 86,471.55 : x
  2. Step 2: Convert to fraction form
    158,091.54/218,171.51 = 86,471.55/x
  3. Step 3: Cross multiply
    158,091.54x = 218,171.51 × 86,471.55
  4. Step 4: Simplify right side
    158,091.54x = 18,865,628,635.54
  5. Step 5: Solve for x
    x = 18,865,628,635.54/158,091.54
  6. Step 6: Final answer
    x = 119,333.57

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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.