Home / 129,923.04-179,417.61-122,847.15

Finding the Fourth Proportional to 129,923.04, 179,417.61 and 122,847.15

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Solution

The fourth proportional to 129,923.04, 179,417.61 and 122,847.15 is: 169,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,923.04 : 179,417.61 = 122,847.15 : x
  2. Step 2: Convert to fraction form
    129,923.04/179,417.61 = 122,847.15/x
  3. Step 3: Cross multiply
    129,923.04x = 179,417.61 × 122,847.15
  4. Step 4: Simplify right side
    129,923.04x = 22,040,942,048.31
  5. Step 5: Solve for x
    x = 22,040,942,048.31/129,923.04
  6. Step 6: Final answer
    x = 169,646.14

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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.