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Finding the Fourth Proportional to 133,151.86, 183,748.63 and 72,722.53

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Solution

The fourth proportional to 133,151.86, 183,748.63 and 72,722.53 is: 100,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,151.86 : 183,748.63 = 72,722.53 : x
  2. Step 2: Convert to fraction form
    133,151.86/183,748.63 = 72,722.53/x
  3. Step 3: Cross multiply
    133,151.86x = 183,748.63 × 72,722.53
  4. Step 4: Simplify right side
    133,151.86x = 13,362,665,257.63
  5. Step 5: Solve for x
    x = 13,362,665,257.63/133,151.86
  6. Step 6: Final answer
    x = 100,356.58

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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.