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Finding the Fourth Proportional to 115,340.68, 159,165.30 and 65,044.36

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Solution

The fourth proportional to 115,340.68, 159,165.30 and 65,044.36 is: 89,758.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,340.68 : 159,165.30 = 65,044.36 : x
  2. Step 2: Convert to fraction form
    115,340.68/159,165.30 = 65,044.36/x
  3. Step 3: Cross multiply
    115,340.68x = 159,165.30 × 65,044.36
  4. Step 4: Simplify right side
    115,340.68x = 10,352,805,072.71
  5. Step 5: Solve for x
    x = 10,352,805,072.71/115,340.68
  6. Step 6: Final answer
    x = 89,758.49

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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.