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Finding the Fourth Proportional to 115,180.99, 158,948.12 and 64,195.64

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Solution

The fourth proportional to 115,180.99, 158,948.12 and 64,195.64 is: 88,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,180.99 : 158,948.12 = 64,195.64 : x
  2. Step 2: Convert to fraction form
    115,180.99/158,948.12 = 64,195.64/x
  3. Step 3: Cross multiply
    115,180.99x = 158,948.12 × 64,195.64
  4. Step 4: Simplify right side
    115,180.99x = 10,203,776,252.00
  5. Step 5: Solve for x
    x = 10,203,776,252.00/115,180.99
  6. Step 6: Final answer
    x = 88,589.07

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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.