Home / 143,277.30-197,718.73-79,613.46

Finding the Fourth Proportional to 143,277.30, 197,718.73 and 79,613.46

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Solution

The fourth proportional to 143,277.30, 197,718.73 and 79,613.46 is: 109,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,277.30 : 197,718.73 = 79,613.46 : x
  2. Step 2: Convert to fraction form
    143,277.30/197,718.73 = 79,613.46/x
  3. Step 3: Cross multiply
    143,277.30x = 197,718.73 × 79,613.46
  4. Step 4: Simplify right side
    143,277.30x = 15,741,072,202.11
  5. Step 5: Solve for x
    x = 15,741,072,202.11/143,277.30
  6. Step 6: Final answer
    x = 109,864.38

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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.