Home / 176,621.31-243,732-100,147.41

Finding the Fourth Proportional to 176,621.31, 243,732 and 100,147.41

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Solution

The fourth proportional to 176,621.31, 243,732 and 100,147.41 is: 138,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,621.31 : 243,732 = 100,147.41 : x
  2. Step 2: Convert to fraction form
    176,621.31/243,732 = 100,147.41/x
  3. Step 3: Cross multiply
    176,621.31x = 243,732 × 100,147.41
  4. Step 4: Simplify right side
    176,621.31x = 24,409,128,534.12
  5. Step 5: Solve for x
    x = 24,409,128,534.12/176,621.31
  6. Step 6: Final answer
    x = 138,200.36

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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.