Home / 147,142.41-203,049.55-81,735.46

Finding the Fourth Proportional to 147,142.41, 203,049.55 and 81,735.46

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Solution

The fourth proportional to 147,142.41, 203,049.55 and 81,735.46 is: 112,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,142.41 : 203,049.55 = 81,735.46 : x
  2. Step 2: Convert to fraction form
    147,142.41/203,049.55 = 81,735.46/x
  3. Step 3: Cross multiply
    147,142.41x = 203,049.55 × 81,735.46
  4. Step 4: Simplify right side
    147,142.41x = 16,596,347,966.59
  5. Step 5: Solve for x
    x = 16,596,347,966.59/147,142.41
  6. Step 6: Final answer
    x = 112,791.06

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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.