Home / 143,215.84-197,637.76-79,559.56

Finding the Fourth Proportional to 143,215.84, 197,637.76 and 79,559.56

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Solution

The fourth proportional to 143,215.84, 197,637.76 and 79,559.56 is: 109,792.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,215.84 : 197,637.76 = 79,559.56 : x
  2. Step 2: Convert to fraction form
    143,215.84/197,637.76 = 79,559.56/x
  3. Step 3: Cross multiply
    143,215.84x = 197,637.76 × 79,559.56
  4. Step 4: Simplify right side
    143,215.84x = 15,723,973,224.99
  5. Step 5: Solve for x
    x = 15,723,973,224.99/143,215.84
  6. Step 6: Final answer
    x = 109,792.14

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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.