Home / 143,090.06-197,473.23-79,428.92

Finding the Fourth Proportional to 143,090.06, 197,473.23 and 79,428.92

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Solution

The fourth proportional to 143,090.06, 197,473.23 and 79,428.92 is: 109,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,090.06 : 197,473.23 = 79,428.92 : x
  2. Step 2: Convert to fraction form
    143,090.06/197,473.23 = 79,428.92/x
  3. Step 3: Cross multiply
    143,090.06x = 197,473.23 × 79,428.92
  4. Step 4: Simplify right side
    143,090.06x = 15,685,085,387.81
  5. Step 5: Solve for x
    x = 15,685,085,387.81/143,090.06
  6. Step 6: Final answer
    x = 109,616.88

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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.