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Finding the Fourth Proportional to 159,551.69, 220,171.43 and 87,927.71

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Solution

The fourth proportional to 159,551.69, 220,171.43 and 87,927.71 is: 121,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,551.69 : 220,171.43 = 87,927.71 : x
  2. Step 2: Convert to fraction form
    159,551.69/220,171.43 = 87,927.71/x
  3. Step 3: Cross multiply
    159,551.69x = 220,171.43 × 87,927.71
  4. Step 4: Simplify right side
    159,551.69x = 19,359,169,647.33
  5. Step 5: Solve for x
    x = 19,359,169,647.33/159,551.69
  6. Step 6: Final answer
    x = 121,334.78

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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.