Home / 178,145.36-245,845.37-100,614.78

Finding the Fourth Proportional to 178,145.36, 245,845.37 and 100,614.78

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Solution

The fourth proportional to 178,145.36, 245,845.37 and 100,614.78 is: 138,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,145.36 : 245,845.37 = 100,614.78 : x
  2. Step 2: Convert to fraction form
    178,145.36/245,845.37 = 100,614.78/x
  3. Step 3: Cross multiply
    178,145.36x = 245,845.37 × 100,614.78
  4. Step 4: Simplify right side
    178,145.36x = 24,735,677,816.57
  5. Step 5: Solve for x
    x = 24,735,677,816.57/178,145.36
  6. Step 6: Final answer
    x = 138,851.10

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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.