Home / 133,150.86-183,747.25-72,721.53

Finding the Fourth Proportional to 133,150.86, 183,747.25 and 72,721.53

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Solution

The fourth proportional to 133,150.86, 183,747.25 and 72,721.53 is: 100,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,150.86 : 183,747.25 = 72,721.53 : x
  2. Step 2: Convert to fraction form
    133,150.86/183,747.25 = 72,721.53/x
  3. Step 3: Cross multiply
    133,150.86x = 183,747.25 × 72,721.53
  4. Step 4: Simplify right side
    133,150.86x = 13,362,381,153.29
  5. Step 5: Solve for x
    x = 13,362,381,153.29/133,150.86
  6. Step 6: Final answer
    x = 100,355.20

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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.