Home / 106,105.12-146,426.05-57,707.51

Finding the Fourth Proportional to 106,105.12, 146,426.05 and 57,707.51

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Solution

The fourth proportional to 106,105.12, 146,426.05 and 57,707.51 is: 79,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,105.12 : 146,426.05 = 57,707.51 : x
  2. Step 2: Convert to fraction form
    106,105.12/146,426.05 = 57,707.51/x
  3. Step 3: Cross multiply
    106,105.12x = 146,426.05 × 57,707.51
  4. Step 4: Simplify right side
    106,105.12x = 8,449,882,744.64
  5. Step 5: Solve for x
    x = 8,449,882,744.64/106,105.12
  6. Step 6: Final answer
    x = 79,636.90

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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.