Home / 115,278.54-159,084.08-64,291.34

Finding the Fourth Proportional to 115,278.54, 159,084.08 and 64,291.34

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Solution

The fourth proportional to 115,278.54, 159,084.08 and 64,291.34 is: 88,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,278.54 : 159,084.08 = 64,291.34 : x
  2. Step 2: Convert to fraction form
    115,278.54/159,084.08 = 64,291.34/x
  3. Step 3: Cross multiply
    115,278.54x = 159,084.08 × 64,291.34
  4. Step 4: Simplify right side
    115,278.54x = 10,227,727,558.99
  5. Step 5: Solve for x
    x = 10,227,727,558.99/115,278.54
  6. Step 6: Final answer
    x = 88,721.87

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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.