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Finding the Fourth Proportional to 115,578.82, 159,510.09 and 70,253.38

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Solution

The fourth proportional to 115,578.82, 159,510.09 and 70,253.38 is: 96,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,578.82 : 159,510.09 = 70,253.38 : x
  2. Step 2: Convert to fraction form
    115,578.82/159,510.09 = 70,253.38/x
  3. Step 3: Cross multiply
    115,578.82x = 159,510.09 × 70,253.38
  4. Step 4: Simplify right side
    115,578.82x = 11,206,122,966.60
  5. Step 5: Solve for x
    x = 11,206,122,966.60/115,578.82
  6. Step 6: Final answer
    x = 96,956.54

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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.