Home / 143,823.84-198,477.18-80,160.36

Finding the Fourth Proportional to 143,823.84, 198,477.18 and 80,160.36

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Solution

The fourth proportional to 143,823.84, 198,477.18 and 80,160.36 is: 110,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.84 : 198,477.18 = 80,160.36 : x
  2. Step 2: Convert to fraction form
    143,823.84/198,477.18 = 80,160.36/x
  3. Step 3: Cross multiply
    143,823.84x = 198,477.18 × 80,160.36
  4. Step 4: Simplify right side
    143,823.84x = 15,910,002,200.58
  5. Step 5: Solve for x
    x = 15,910,002,200.58/143,823.84
  6. Step 6: Final answer
    x = 110,621.45

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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.