Home / 118,933.38-178,054.20-102,399.66

Finding the Fourth Proportional to 118,933.38, 178,054.20 and 102,399.66

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Solution

The fourth proportional to 118,933.38, 178,054.20 and 102,399.66 is: 153,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,933.38 : 178,054.20 = 102,399.66 : x
  2. Step 2: Convert to fraction form
    118,933.38/178,054.20 = 102,399.66/x
  3. Step 3: Cross multiply
    118,933.38x = 178,054.20 × 102,399.66
  4. Step 4: Simplify right side
    118,933.38x = 18,232,689,541.57
  5. Step 5: Solve for x
    x = 18,232,689,541.57/118,933.38
  6. Step 6: Final answer
    x = 153,301.70

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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.