Home / 129,022.80-193,145.40-113,470.80

Finding the Fourth Proportional to 129,022.80, 193,145.40 and 113,470.80

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Solution

The fourth proportional to 129,022.80, 193,145.40 and 113,470.80 is: 169,864.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,022.80 : 193,145.40 = 113,470.80 : x
  2. Step 2: Convert to fraction form
    129,022.80/193,145.40 = 113,470.80/x
  3. Step 3: Cross multiply
    129,022.80x = 193,145.40 × 113,470.80
  4. Step 4: Simplify right side
    129,022.80x = 21,916,363,054.32
  5. Step 5: Solve for x
    x = 21,916,363,054.32/129,022.80
  6. Step 6: Final answer
    x = 169,864.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.