Home / 155,767.10-214,958.30-84,146.90

Finding the Fourth Proportional to 155,767.10, 214,958.30 and 84,146.90

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Solution

The fourth proportional to 155,767.10, 214,958.30 and 84,146.90 is: 116,122.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,767.10 : 214,958.30 = 84,146.90 : x
  2. Step 2: Convert to fraction form
    155,767.10/214,958.30 = 84,146.90/x
  3. Step 3: Cross multiply
    155,767.10x = 214,958.30 × 84,146.90
  4. Step 4: Simplify right side
    155,767.10x = 18,088,074,574.27
  5. Step 5: Solve for x
    x = 18,088,074,574.27/155,767.10
  6. Step 6: Final answer
    x = 116,122.56

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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.