Home / 282,140.70-423,211.05-82,453.02

Finding the Fourth Proportional to 282,140.70, 423,211.05 and 82,453.02

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Solution

The fourth proportional to 282,140.70, 423,211.05 and 82,453.02 is: 123,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,140.70 : 423,211.05 = 82,453.02 : x
  2. Step 2: Convert to fraction form
    282,140.70/423,211.05 = 82,453.02/x
  3. Step 3: Cross multiply
    282,140.70x = 423,211.05 × 82,453.02
  4. Step 4: Simplify right side
    282,140.70x = 34,895,029,169.87
  5. Step 5: Solve for x
    x = 34,895,029,169.87/282,140.70
  6. Step 6: Final answer
    x = 123,679.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.