Home / 143,008.92-197,348.94-79,345.08

Finding the Fourth Proportional to 143,008.92, 197,348.94 and 79,345.08

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Solution

The fourth proportional to 143,008.92, 197,348.94 and 79,345.08 is: 109,494.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,008.92 : 197,348.94 = 79,345.08 : x
  2. Step 2: Convert to fraction form
    143,008.92/197,348.94 = 79,345.08/x
  3. Step 3: Cross multiply
    143,008.92x = 197,348.94 × 79,345.08
  4. Step 4: Simplify right side
    143,008.92x = 15,658,667,432.22
  5. Step 5: Solve for x
    x = 15,658,667,432.22/143,008.92
  6. Step 6: Final answer
    x = 109,494.34

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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.