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Finding the Fourth Proportional to 133,105.88, 183,686.67 and 72,677.86

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Solution

The fourth proportional to 133,105.88, 183,686.67 and 72,677.86 is: 100,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,105.88 : 183,686.67 = 72,677.86 : x
  2. Step 2: Convert to fraction form
    133,105.88/183,686.67 = 72,677.86/x
  3. Step 3: Cross multiply
    133,105.88x = 183,686.67 × 72,677.86
  4. Step 4: Simplify right side
    133,105.88x = 13,349,953,626.91
  5. Step 5: Solve for x
    x = 13,349,953,626.91/133,105.88
  6. Step 6: Final answer
    x = 100,295.74

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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.