Home / 133,219.94-183,838.05-72,792.66

Finding the Fourth Proportional to 133,219.94, 183,838.05 and 72,792.66

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Solution

The fourth proportional to 133,219.94, 183,838.05 and 72,792.66 is: 100,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,219.94 : 183,838.05 = 72,792.66 : x
  2. Step 2: Convert to fraction form
    133,219.94/183,838.05 = 72,792.66/x
  3. Step 3: Cross multiply
    133,219.94x = 183,838.05 × 72,792.66
  4. Step 4: Simplify right side
    133,219.94x = 13,382,060,668.71
  5. Step 5: Solve for x
    x = 13,382,060,668.71/133,219.94
  6. Step 6: Final answer
    x = 100,450.89

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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.