Home / 88,726.90-133,090.35-82,311.70

Finding the Fourth Proportional to 88,726.90, 133,090.35 and 82,311.70

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Solution

The fourth proportional to 88,726.90, 133,090.35 and 82,311.70 is: 123,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,726.90 : 133,090.35 = 82,311.70 : x
  2. Step 2: Convert to fraction form
    88,726.90/133,090.35 = 82,311.70/x
  3. Step 3: Cross multiply
    88,726.90x = 133,090.35 × 82,311.70
  4. Step 4: Simplify right side
    88,726.90x = 10,954,892,962.10
  5. Step 5: Solve for x
    x = 10,954,892,962.10/88,726.90
  6. Step 6: Final answer
    x = 123,467.55

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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.