Home / 107,516.86-148,154.45-83,169.91

Finding the Fourth Proportional to 107,516.86, 148,154.45 and 83,169.91

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Solution

The fourth proportional to 107,516.86, 148,154.45 and 83,169.91 is: 114,605.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,516.86 : 148,154.45 = 83,169.91 : x
  2. Step 2: Convert to fraction form
    107,516.86/148,154.45 = 83,169.91/x
  3. Step 3: Cross multiply
    107,516.86x = 148,154.45 × 83,169.91
  4. Step 4: Simplify right side
    107,516.86x = 12,321,992,110.14
  5. Step 5: Solve for x
    x = 12,321,992,110.14/107,516.86
  6. Step 6: Final answer
    x = 114,605.21

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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.