Home / 143,817.84-198,468.90-80,154.36

Finding the Fourth Proportional to 143,817.84, 198,468.90 and 80,154.36

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Solution

The fourth proportional to 143,817.84, 198,468.90 and 80,154.36 is: 110,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,817.84 : 198,468.90 = 80,154.36 : x
  2. Step 2: Convert to fraction form
    143,817.84/198,468.90 = 80,154.36/x
  3. Step 3: Cross multiply
    143,817.84x = 198,468.90 × 80,154.36
  4. Step 4: Simplify right side
    143,817.84x = 15,908,147,659.40
  5. Step 5: Solve for x
    x = 15,908,147,659.40/143,817.84
  6. Step 6: Final answer
    x = 110,613.17

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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.