Home / 133,228.55-183,853.22-72,797.90

Finding the Fourth Proportional to 133,228.55, 183,853.22 and 72,797.90

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Solution

The fourth proportional to 133,228.55, 183,853.22 and 72,797.90 is: 100,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,228.55 : 183,853.22 = 72,797.90 : x
  2. Step 2: Convert to fraction form
    133,228.55/183,853.22 = 72,797.90/x
  3. Step 3: Cross multiply
    133,228.55x = 183,853.22 × 72,797.90
  4. Step 4: Simplify right side
    133,228.55x = 13,384,127,040.98
  5. Step 5: Solve for x
    x = 13,384,127,040.98/133,228.55
  6. Step 6: Final answer
    x = 100,459.90

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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.