Home / 197,568.72-272,645.28-112,683.60

Finding the Fourth Proportional to 197,568.72, 272,645.28 and 112,683.60

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Solution

The fourth proportional to 197,568.72, 272,645.28 and 112,683.60 is: 155,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,568.72 : 272,645.28 = 112,683.60 : x
  2. Step 2: Convert to fraction form
    197,568.72/272,645.28 = 112,683.60/x
  3. Step 3: Cross multiply
    197,568.72x = 272,645.28 × 112,683.60
  4. Step 4: Simplify right side
    197,568.72x = 30,722,651,673.41
  5. Step 5: Solve for x
    x = 30,722,651,673.41/197,568.72
  6. Step 6: Final answer
    x = 155,503.62

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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.