Home / 143,584.56-198,139.08-109,616.76

Finding the Fourth Proportional to 143,584.56, 198,139.08 and 109,616.76

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Solution

The fourth proportional to 143,584.56, 198,139.08 and 109,616.76 is: 151,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584.56 : 198,139.08 = 109,616.76 : x
  2. Step 2: Convert to fraction form
    143,584.56/198,139.08 = 109,616.76/x
  3. Step 3: Cross multiply
    143,584.56x = 198,139.08 × 109,616.76
  4. Step 4: Simplify right side
    143,584.56x = 21,719,363,978.98
  5. Step 5: Solve for x
    x = 21,719,363,978.98/143,584.56
  6. Step 6: Final answer
    x = 151,265.32

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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.