Home / 92,225.20-138,228.45-82,821.10

Finding the Fourth Proportional to 92,225.20, 138,228.45 and 82,821.10

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Solution

The fourth proportional to 92,225.20, 138,228.45 and 82,821.10 is: 124,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,225.20 : 138,228.45 = 82,821.10 : x
  2. Step 2: Convert to fraction form
    92,225.20/138,228.45 = 82,821.10/x
  3. Step 3: Cross multiply
    92,225.20x = 138,228.45 × 82,821.10
  4. Step 4: Simplify right side
    92,225.20x = 11,448,232,280.30
  5. Step 5: Solve for x
    x = 11,448,232,280.30/92,225.20
  6. Step 6: Final answer
    x = 124,133.45

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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.