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Finding the Fourth Proportional to 115,425.56, 159,295.28 and 64,448.32

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Solution

The fourth proportional to 115,425.56, 159,295.28 and 64,448.32 is: 88,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,425.56 : 159,295.28 = 64,448.32 : x
  2. Step 2: Convert to fraction form
    115,425.56/159,295.28 = 64,448.32/x
  3. Step 3: Cross multiply
    115,425.56x = 159,295.28 × 64,448.32
  4. Step 4: Simplify right side
    115,425.56x = 10,266,313,179.93
  5. Step 5: Solve for x
    x = 10,266,313,179.93/115,425.56
  6. Step 6: Final answer
    x = 88,943.15

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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.