Home / 198,270.72-273,522.96-137,985.12

Finding the Fourth Proportional to 198,270.72, 273,522.96 and 137,985.12

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Solution

The fourth proportional to 198,270.72, 273,522.96 and 137,985.12 is: 190,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,270.72 : 273,522.96 = 137,985.12 : x
  2. Step 2: Convert to fraction form
    198,270.72/273,522.96 = 137,985.12/x
  3. Step 3: Cross multiply
    198,270.72x = 273,522.96 × 137,985.12
  4. Step 4: Simplify right side
    198,270.72x = 37,742,098,458.36
  5. Step 5: Solve for x
    x = 37,742,098,458.36/198,270.72
  6. Step 6: Final answer
    x = 190,356.39

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1.5x scale

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.