Home / 198,807.98-273,977.08-142,120.94

Finding the Fourth Proportional to 198,807.98, 273,977.08 and 142,120.94

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Solution

The fourth proportional to 198,807.98, 273,977.08 and 142,120.94 is: 195,856.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,807.98 : 273,977.08 = 142,120.94 : x
  2. Step 2: Convert to fraction form
    198,807.98/273,977.08 = 142,120.94/x
  3. Step 3: Cross multiply
    198,807.98x = 273,977.08 × 142,120.94
  4. Step 4: Simplify right side
    198,807.98x = 38,937,880,148.06
  5. Step 5: Solve for x
    x = 38,937,880,148.06/198,807.98
  6. Step 6: Final answer
    x = 195,856.73

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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.