Home / 133,286.40-183,932.24-72,857.12

Finding the Fourth Proportional to 133,286.40, 183,932.24 and 72,857.12

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Solution

The fourth proportional to 133,286.40, 183,932.24 and 72,857.12 is: 100,541.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,286.40 : 183,932.24 = 72,857.12 : x
  2. Step 2: Convert to fraction form
    133,286.40/183,932.24 = 72,857.12/x
  3. Step 3: Cross multiply
    133,286.40x = 183,932.24 × 72,857.12
  4. Step 4: Simplify right side
    133,286.40x = 13,400,773,281.55
  5. Step 5: Solve for x
    x = 13,400,773,281.55/133,286.40
  6. Step 6: Final answer
    x = 100,541.19

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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.