Home / 282,020.92-423,142.14-124,138.69

Finding the Fourth Proportional to 282,020.92, 423,142.14 and 124,138.69

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Solution

The fourth proportional to 282,020.92, 423,142.14 and 124,138.69 is: 186,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,020.92 : 423,142.14 = 124,138.69 : x
  2. Step 2: Convert to fraction form
    282,020.92/423,142.14 = 124,138.69/x
  3. Step 3: Cross multiply
    282,020.92x = 423,142.14 × 124,138.69
  4. Step 4: Simplify right side
    282,020.92x = 52,528,310,943.40
  5. Step 5: Solve for x
    x = 52,528,310,943.40/282,020.92
  6. Step 6: Final answer
    x = 186,256.79

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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.