Home / 133,099.10-183,679.54-72,672.29

Finding the Fourth Proportional to 133,099.10, 183,679.54 and 72,672.29

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Solution

The fourth proportional to 133,099.10, 183,679.54 and 72,672.29 is: 100,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,099.10 : 183,679.54 = 72,672.29 : x
  2. Step 2: Convert to fraction form
    133,099.10/183,679.54 = 72,672.29/x
  3. Step 3: Cross multiply
    133,099.10x = 183,679.54 × 72,672.29
  4. Step 4: Simplify right side
    133,099.10x = 13,348,412,797.95
  5. Step 5: Solve for x
    x = 13,348,412,797.95/133,099.10
  6. Step 6: Final answer
    x = 100,289.28

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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.