Home / 143,817.14-198,476.25-80,154.79

Finding the Fourth Proportional to 143,817.14, 198,476.25 and 80,154.79

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Solution

The fourth proportional to 143,817.14, 198,476.25 and 80,154.79 is: 110,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,817.14 : 198,476.25 = 80,154.79 : x
  2. Step 2: Convert to fraction form
    143,817.14/198,476.25 = 80,154.79/x
  3. Step 3: Cross multiply
    143,817.14x = 198,476.25 × 80,154.79
  4. Step 4: Simplify right side
    143,817.14x = 15,908,822,138.74
  5. Step 5: Solve for x
    x = 15,908,822,138.74/143,817.14
  6. Step 6: Final answer
    x = 110,618.40

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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.