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Finding the Fourth Proportional to 153,263.94, 211,472.54 and 89,589.42

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Solution

The fourth proportional to 153,263.94, 211,472.54 and 89,589.42 is: 123,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,263.94 : 211,472.54 = 89,589.42 : x
  2. Step 2: Convert to fraction form
    153,263.94/211,472.54 = 89,589.42/x
  3. Step 3: Cross multiply
    153,263.94x = 211,472.54 × 89,589.42
  4. Step 4: Simplify right side
    153,263.94x = 18,945,702,204.53
  5. Step 5: Solve for x
    x = 18,945,702,204.53/153,263.94
  6. Step 6: Final answer
    x = 123,614.87

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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.