Home / 133,057.12-183,624.24-72,631.84

Finding the Fourth Proportional to 133,057.12, 183,624.24 and 72,631.84

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Solution

The fourth proportional to 133,057.12, 183,624.24 and 72,631.84 is: 100,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,057.12 : 183,624.24 = 72,631.84 : x
  2. Step 2: Convert to fraction form
    133,057.12/183,624.24 = 72,631.84/x
  3. Step 3: Cross multiply
    133,057.12x = 183,624.24 × 72,631.84
  4. Step 4: Simplify right side
    133,057.12x = 13,336,966,419.80
  5. Step 5: Solve for x
    x = 13,336,966,419.80/133,057.12
  6. Step 6: Final answer
    x = 100,234.89

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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.