Home / 143,474.17-197,987.67-79,816.25

Finding the Fourth Proportional to 143,474.17, 197,987.67 and 79,816.25

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Solution

The fourth proportional to 143,474.17, 197,987.67 and 79,816.25 is: 110,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,474.17 : 197,987.67 = 79,816.25 : x
  2. Step 2: Convert to fraction form
    143,474.17/197,987.67 = 79,816.25/x
  3. Step 3: Cross multiply
    143,474.17x = 197,987.67 × 79,816.25
  4. Step 4: Simplify right side
    143,474.17x = 15,802,632,966.56
  5. Step 5: Solve for x
    x = 15,802,632,966.56/143,474.17
  6. Step 6: Final answer
    x = 110,142.70

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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.