Home / 178,150.28-245,704.07-137,972.66

Finding the Fourth Proportional to 178,150.28, 245,704.07 and 137,972.66

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Solution

The fourth proportional to 178,150.28, 245,704.07 and 137,972.66 is: 190,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,150.28 : 245,704.07 = 137,972.66 : x
  2. Step 2: Convert to fraction form
    178,150.28/245,704.07 = 137,972.66/x
  3. Step 3: Cross multiply
    178,150.28x = 245,704.07 × 137,972.66
  4. Step 4: Simplify right side
    178,150.28x = 33,900,443,420.86
  5. Step 5: Solve for x
    x = 33,900,443,420.86/178,150.28
  6. Step 6: Final answer
    x = 190,291.27

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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.