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Finding the Fourth Proportional to 159,440.88, 220,020.09 and 99,010.25

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Solution

The fourth proportional to 159,440.88, 220,020.09 and 99,010.25 is: 136,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,440.88 : 220,020.09 = 99,010.25 : x
  2. Step 2: Convert to fraction form
    159,440.88/220,020.09 = 99,010.25/x
  3. Step 3: Cross multiply
    159,440.88x = 220,020.09 × 99,010.25
  4. Step 4: Simplify right side
    159,440.88x = 21,784,243,015.82
  5. Step 5: Solve for x
    x = 21,784,243,015.82/159,440.88
  6. Step 6: Final answer
    x = 136,628.97

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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.