Home / 158,954.27-219,356.71-87,334.11

Finding the Fourth Proportional to 158,954.27, 219,356.71 and 87,334.11

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Solution

The fourth proportional to 158,954.27, 219,356.71 and 87,334.11 is: 120,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,954.27 : 219,356.71 = 87,334.11 : x
  2. Step 2: Convert to fraction form
    158,954.27/219,356.71 = 87,334.11/x
  3. Step 3: Cross multiply
    158,954.27x = 219,356.71 × 87,334.11
  4. Step 4: Simplify right side
    158,954.27x = 19,157,323,040.38
  5. Step 5: Solve for x
    x = 19,157,323,040.38/158,954.27
  6. Step 6: Final answer
    x = 120,520.97

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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.