Home / 133,302.76-183,959.03-72,872.30

Finding the Fourth Proportional to 133,302.76, 183,959.03 and 72,872.30

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Solution

The fourth proportional to 133,302.76, 183,959.03 and 72,872.30 is: 100,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,302.76 : 183,959.03 = 72,872.30 : x
  2. Step 2: Convert to fraction form
    133,302.76/183,959.03 = 72,872.30/x
  3. Step 3: Cross multiply
    133,302.76x = 183,959.03 × 72,872.30
  4. Step 4: Simplify right side
    133,302.76x = 13,405,517,621.87
  5. Step 5: Solve for x
    x = 13,405,517,621.87/133,302.76
  6. Step 6: Final answer
    x = 100,564.44

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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.