Home / 282,097.12-423,147.24-71,735.20

Finding the Fourth Proportional to 282,097.12, 423,147.24 and 71,735.20

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Solution

The fourth proportional to 282,097.12, 423,147.24 and 71,735.20 is: 107,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,097.12 : 423,147.24 = 71,735.20 : x
  2. Step 2: Convert to fraction form
    282,097.12/423,147.24 = 71,735.20/x
  3. Step 3: Cross multiply
    282,097.12x = 423,147.24 × 71,735.20
  4. Step 4: Simplify right side
    282,097.12x = 30,354,551,890.85
  5. Step 5: Solve for x
    x = 30,354,551,890.85/282,097.12
  6. Step 6: Final answer
    x = 107,603.20

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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.