Home / 142,581.74-196,806.64-82,192.76

Finding the Fourth Proportional to 142,581.74, 196,806.64 and 82,192.76

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Solution

The fourth proportional to 142,581.74, 196,806.64 and 82,192.76 is: 113,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,581.74 : 196,806.64 = 82,192.76 : x
  2. Step 2: Convert to fraction form
    142,581.74/196,806.64 = 82,192.76/x
  3. Step 3: Cross multiply
    142,581.74x = 196,806.64 × 82,192.76
  4. Step 4: Simplify right side
    142,581.74x = 16,176,080,927.93
  5. Step 5: Solve for x
    x = 16,176,080,927.93/142,581.74
  6. Step 6: Final answer
    x = 113,451.28

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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.