Home / 143,744.01-198,368.04-79,215.56

Finding the Fourth Proportional to 143,744.01, 198,368.04 and 79,215.56

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Solution

The fourth proportional to 143,744.01, 198,368.04 and 79,215.56 is: 109,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,744.01 : 198,368.04 = 79,215.56 : x
  2. Step 2: Convert to fraction form
    143,744.01/198,368.04 = 79,215.56/x
  3. Step 3: Cross multiply
    143,744.01x = 198,368.04 × 79,215.56
  4. Step 4: Simplify right side
    143,744.01x = 15,713,834,532.16
  5. Step 5: Solve for x
    x = 15,713,834,532.16/143,744.01
  6. Step 6: Final answer
    x = 109,318.19

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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.