Home / 106,257.66-146,632.11-58,509.78

Finding the Fourth Proportional to 106,257.66, 146,632.11 and 58,509.78

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Solution

The fourth proportional to 106,257.66, 146,632.11 and 58,509.78 is: 80,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,257.66 : 146,632.11 = 58,509.78 : x
  2. Step 2: Convert to fraction form
    106,257.66/146,632.11 = 58,509.78/x
  3. Step 3: Cross multiply
    106,257.66x = 146,632.11 × 58,509.78
  4. Step 4: Simplify right side
    106,257.66x = 8,579,411,727.75
  5. Step 5: Solve for x
    x = 8,579,411,727.75/106,257.66
  6. Step 6: Final answer
    x = 80,741.59

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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.