Home / 98,772.24-147,985.92-82,238.64

Finding the Fourth Proportional to 98,772.24, 147,985.92 and 82,238.64

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Solution

The fourth proportional to 98,772.24, 147,985.92 and 82,238.64 is: 123,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,772.24 : 147,985.92 = 82,238.64 : x
  2. Step 2: Convert to fraction form
    98,772.24/147,985.92 = 82,238.64/x
  3. Step 3: Cross multiply
    98,772.24x = 147,985.92 × 82,238.64
  4. Step 4: Simplify right side
    98,772.24x = 12,170,160,799.95
  5. Step 5: Solve for x
    x = 12,170,160,799.95/98,772.24
  6. Step 6: Final answer
    x = 123,214.38

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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.