Home / 115,270.98-159,070.78-64,285.26

Finding the Fourth Proportional to 115,270.98, 159,070.78 and 64,285.26

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Solution

The fourth proportional to 115,270.98, 159,070.78 and 64,285.26 is: 88,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,270.98 : 159,070.78 = 64,285.26 : x
  2. Step 2: Convert to fraction form
    115,270.98/159,070.78 = 64,285.26/x
  3. Step 3: Cross multiply
    115,270.98x = 159,070.78 × 64,285.26
  4. Step 4: Simplify right side
    115,270.98x = 10,225,906,450.70
  5. Step 5: Solve for x
    x = 10,225,906,450.70/115,270.98
  6. Step 6: Final answer
    x = 88,711.89

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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.