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Finding the Fourth Proportional to 115,465.33, 159,328.10 and 64,480.90

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Solution

The fourth proportional to 115,465.33, 159,328.10 and 64,480.90 is: 88,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,465.33 : 159,328.10 = 64,480.90 : x
  2. Step 2: Convert to fraction form
    115,465.33/159,328.10 = 64,480.90/x
  3. Step 3: Cross multiply
    115,465.33x = 159,328.10 × 64,480.90
  4. Step 4: Simplify right side
    115,465.33x = 10,273,618,164.25
  5. Step 5: Solve for x
    x = 10,273,618,164.25/115,465.33
  6. Step 6: Final answer
    x = 88,975.78

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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.