Home / 143,010.92-197,351.70-79,347.08

Finding the Fourth Proportional to 143,010.92, 197,351.70 and 79,347.08

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Solution

The fourth proportional to 143,010.92, 197,351.70 and 79,347.08 is: 109,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,010.92 : 197,351.70 = 79,347.08 : x
  2. Step 2: Convert to fraction form
    143,010.92/197,351.70 = 79,347.08/x
  3. Step 3: Cross multiply
    143,010.92x = 197,351.70 × 79,347.08
  4. Step 4: Simplify right side
    143,010.92x = 15,659,281,128.04
  5. Step 5: Solve for x
    x = 15,659,281,128.04/143,010.92
  6. Step 6: Final answer
    x = 109,497.10

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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.