Home / 98,636.74-147,782.85-82,103.02

Finding the Fourth Proportional to 98,636.74, 147,782.85 and 82,103.02

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Solution

The fourth proportional to 98,636.74, 147,782.85 and 82,103.02 is: 123,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,636.74 : 147,782.85 = 82,103.02 : x
  2. Step 2: Convert to fraction form
    98,636.74/147,782.85 = 82,103.02/x
  3. Step 3: Cross multiply
    98,636.74x = 147,782.85 × 82,103.02
  4. Step 4: Simplify right side
    98,636.74x = 12,133,418,289.21
  5. Step 5: Solve for x
    x = 12,133,418,289.21/98,636.74
  6. Step 6: Final answer
    x = 123,011.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.