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Finding the Fourth Proportional to 115,145.66, 172,724.67 and 36,266.06

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Solution

The fourth proportional to 115,145.66, 172,724.67 and 36,266.06 is: 54,401.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,145.66 : 172,724.67 = 36,266.06 : x
  2. Step 2: Convert to fraction form
    115,145.66/172,724.67 = 36,266.06/x
  3. Step 3: Cross multiply
    115,145.66x = 172,724.67 × 36,266.06
  4. Step 4: Simplify right side
    115,145.66x = 6,264,042,382.08
  5. Step 5: Solve for x
    x = 6,264,042,382.08/115,145.66
  6. Step 6: Final answer
    x = 54,401.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.