Home / 106,139.94-159,078.68-53,564.46

Finding the Fourth Proportional to 106,139.94, 159,078.68 and 53,564.46

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Solution

The fourth proportional to 106,139.94, 159,078.68 and 53,564.46 is: 80,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,139.94 : 159,078.68 = 53,564.46 : x
  2. Step 2: Convert to fraction form
    106,139.94/159,078.68 = 53,564.46/x
  3. Step 3: Cross multiply
    106,139.94x = 159,078.68 × 53,564.46
  4. Step 4: Simplify right side
    106,139.94x = 8,520,963,591.71
  5. Step 5: Solve for x
    x = 8,520,963,591.71/106,139.94
  6. Step 6: Final answer
    x = 80,280.46

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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.