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Finding the Fourth Proportional to 144,019.94, 198,715.70 and 83,555.56

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Solution

The fourth proportional to 144,019.94, 198,715.70 and 83,555.56 is: 115,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,019.94 : 198,715.70 = 83,555.56 : x
  2. Step 2: Convert to fraction form
    144,019.94/198,715.70 = 83,555.56/x
  3. Step 3: Cross multiply
    144,019.94x = 198,715.70 × 83,555.56
  4. Step 4: Simplify right side
    144,019.94x = 16,603,801,594.29
  5. Step 5: Solve for x
    x = 16,603,801,594.29/144,019.94
  6. Step 6: Final answer
    x = 115,288.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.