Home / 143,063.93-197,424.46-79,400.09

Finding the Fourth Proportional to 143,063.93, 197,424.46 and 79,400.09

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Solution

The fourth proportional to 143,063.93, 197,424.46 and 79,400.09 is: 109,570.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,063.93 : 197,424.46 = 79,400.09 : x
  2. Step 2: Convert to fraction form
    143,063.93/197,424.46 = 79,400.09/x
  3. Step 3: Cross multiply
    143,063.93x = 197,424.46 × 79,400.09
  4. Step 4: Simplify right side
    143,063.93x = 15,675,519,892.20
  5. Step 5: Solve for x
    x = 15,675,519,892.20/143,063.93
  6. Step 6: Final answer
    x = 109,570.04

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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.