Home / 143,632.28-198,218.68-79,970.06

Finding the Fourth Proportional to 143,632.28, 198,218.68 and 79,970.06

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Solution

The fourth proportional to 143,632.28, 198,218.68 and 79,970.06 is: 110,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,632.28 : 198,218.68 = 79,970.06 : x
  2. Step 2: Convert to fraction form
    143,632.28/198,218.68 = 79,970.06/x
  3. Step 3: Cross multiply
    143,632.28x = 198,218.68 × 79,970.06
  4. Step 4: Simplify right side
    143,632.28x = 15,851,560,028.34
  5. Step 5: Solve for x
    x = 15,851,560,028.34/143,632.28
  6. Step 6: Final answer
    x = 110,362.10

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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.