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Finding the Fourth Proportional to 159,423.73, 220,010.39 and 99,027.45

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Solution

The fourth proportional to 159,423.73, 220,010.39 and 99,027.45 is: 136,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,423.73 : 220,010.39 = 99,027.45 : x
  2. Step 2: Convert to fraction form
    159,423.73/220,010.39 = 99,027.45/x
  3. Step 3: Cross multiply
    159,423.73x = 220,010.39 × 99,027.45
  4. Step 4: Simplify right side
    159,423.73x = 21,787,067,895.21
  5. Step 5: Solve for x
    x = 21,787,067,895.21/159,423.73
  6. Step 6: Final answer
    x = 136,661.39

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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.