Home / 133,110.79-183,696.68-72,685.27

Finding the Fourth Proportional to 133,110.79, 183,696.68 and 72,685.27

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Solution

The fourth proportional to 133,110.79, 183,696.68 and 72,685.27 is: 100,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.79 : 183,696.68 = 72,685.27 : x
  2. Step 2: Convert to fraction form
    133,110.79/183,696.68 = 72,685.27/x
  3. Step 3: Cross multiply
    133,110.79x = 183,696.68 × 72,685.27
  4. Step 4: Simplify right side
    133,110.79x = 13,352,042,783.90
  5. Step 5: Solve for x
    x = 13,352,042,783.90/133,110.79
  6. Step 6: Final answer
    x = 100,307.74

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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.