Home / 133,153.32-183,747.42-72,723

Finding the Fourth Proportional to 133,153.32, 183,747.42 and 72,723

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Solution

The fourth proportional to 133,153.32, 183,747.42 and 72,723 is: 100,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,153.32 : 183,747.42 = 72,723 : x
  2. Step 2: Convert to fraction form
    133,153.32/183,747.42 = 72,723/x
  3. Step 3: Cross multiply
    133,153.32x = 183,747.42 × 72,723
  4. Step 4: Simplify right side
    133,153.32x = 13,362,663,624.66
  5. Step 5: Solve for x
    x = 13,362,663,624.66/133,153.32
  6. Step 6: Final answer
    x = 100,355.47

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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.