Home / 158,816.93-219,167.78-87,201.59

Finding the Fourth Proportional to 158,816.93, 219,167.78 and 87,201.59

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Solution

The fourth proportional to 158,816.93, 219,167.78 and 87,201.59 is: 120,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,816.93 : 219,167.78 = 87,201.59 : x
  2. Step 2: Convert to fraction form
    158,816.93/219,167.78 = 87,201.59/x
  3. Step 3: Cross multiply
    158,816.93x = 219,167.78 × 87,201.59
  4. Step 4: Simplify right side
    158,816.93x = 19,111,778,014.94
  5. Step 5: Solve for x
    x = 19,111,778,014.94/158,816.93
  6. Step 6: Final answer
    x = 120,338.42

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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.