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Finding the Fourth Proportional to 159,560.28, 220,194.72 and 87,943.05

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Solution

The fourth proportional to 159,560.28, 220,194.72 and 87,943.05 is: 121,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,560.28 : 220,194.72 = 87,943.05 : x
  2. Step 2: Convert to fraction form
    159,560.28/220,194.72 = 87,943.05/x
  3. Step 3: Cross multiply
    159,560.28x = 220,194.72 × 87,943.05
  4. Step 4: Simplify right side
    159,560.28x = 19,364,595,270.70
  5. Step 5: Solve for x
    x = 19,364,595,270.70/159,560.28
  6. Step 6: Final answer
    x = 121,362.25

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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.