Home / 120,224.97-180,378.90-53,711.01

Finding the Fourth Proportional to 120,224.97, 180,378.90 and 53,711.01

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Solution

The fourth proportional to 120,224.97, 180,378.90 and 53,711.01 is: 80,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,224.97 : 180,378.90 = 53,711.01 : x
  2. Step 2: Convert to fraction form
    120,224.97/180,378.90 = 53,711.01/x
  3. Step 3: Cross multiply
    120,224.97x = 180,378.90 × 53,711.01
  4. Step 4: Simplify right side
    120,224.97x = 9,688,332,901.69
  5. Step 5: Solve for x
    x = 9,688,332,901.69/120,224.97
  6. Step 6: Final answer
    x = 80,585.03

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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.