Home / 158,316.54-218,449.11-91,235.58

Finding the Fourth Proportional to 158,316.54, 218,449.11 and 91,235.58

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Solution

The fourth proportional to 158,316.54, 218,449.11 and 91,235.58 is: 125,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,316.54 : 218,449.11 = 91,235.58 : x
  2. Step 2: Convert to fraction form
    158,316.54/218,449.11 = 91,235.58/x
  3. Step 3: Cross multiply
    158,316.54x = 218,449.11 × 91,235.58
  4. Step 4: Simplify right side
    158,316.54x = 19,930,331,251.33
  5. Step 5: Solve for x
    x = 19,930,331,251.33/158,316.54
  6. Step 6: Final answer
    x = 125,889.13

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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.