Home / 133,311.47-183,969.92-72,881.15

Finding the Fourth Proportional to 133,311.47, 183,969.92 and 72,881.15

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Solution

The fourth proportional to 133,311.47, 183,969.92 and 72,881.15 is: 100,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,311.47 : 183,969.92 = 72,881.15 : x
  2. Step 2: Convert to fraction form
    133,311.47/183,969.92 = 72,881.15/x
  3. Step 3: Cross multiply
    133,311.47x = 183,969.92 × 72,881.15
  4. Step 4: Simplify right side
    133,311.47x = 13,407,938,597.36
  5. Step 5: Solve for x
    x = 13,407,938,597.36/133,311.47
  6. Step 6: Final answer
    x = 100,576.04

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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.