Home / 172,182.87-257,844.76-108,811.81

Finding the Fourth Proportional to 172,182.87, 257,844.76 and 108,811.81

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Solution

The fourth proportional to 172,182.87, 257,844.76 and 108,811.81 is: 162,946.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,182.87 : 257,844.76 = 108,811.81 : x
  2. Step 2: Convert to fraction form
    172,182.87/257,844.76 = 108,811.81/x
  3. Step 3: Cross multiply
    172,182.87x = 257,844.76 × 108,811.81
  4. Step 4: Simplify right side
    172,182.87x = 28,056,554,907.47
  5. Step 5: Solve for x
    x = 28,056,554,907.47/172,182.87
  6. Step 6: Final answer
    x = 162,946.26

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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.