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Finding the Fourth Proportional to 115,467.14, 159,343.14 and 64,480.76

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Solution

The fourth proportional to 115,467.14, 159,343.14 and 64,480.76 is: 88,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,467.14 : 159,343.14 = 64,480.76 : x
  2. Step 2: Convert to fraction form
    115,467.14/159,343.14 = 64,480.76/x
  3. Step 3: Cross multiply
    115,467.14x = 159,343.14 × 64,480.76
  4. Step 4: Simplify right side
    115,467.14x = 10,274,566,767.99
  5. Step 5: Solve for x
    x = 10,274,566,767.99/115,467.14
  6. Step 6: Final answer
    x = 88,982.60

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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.