Home / 142,475.20-196,598.65-82,065.49

Finding the Fourth Proportional to 142,475.20, 196,598.65 and 82,065.49

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Solution

The fourth proportional to 142,475.20, 196,598.65 and 82,065.49 is: 113,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,475.20 : 196,598.65 = 82,065.49 : x
  2. Step 2: Convert to fraction form
    142,475.20/196,598.65 = 82,065.49/x
  3. Step 3: Cross multiply
    142,475.20x = 196,598.65 × 82,065.49
  4. Step 4: Simplify right side
    142,475.20x = 16,133,964,135.26
  5. Step 5: Solve for x
    x = 16,133,964,135.26/142,475.20
  6. Step 6: Final answer
    x = 113,240.51

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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.