Home / 103,745.10-155,398.95-92,664.30

Finding the Fourth Proportional to 103,745.10, 155,398.95 and 92,664.30

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Solution

The fourth proportional to 103,745.10, 155,398.95 and 92,664.30 is: 138,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,745.10 : 155,398.95 = 92,664.30 : x
  2. Step 2: Convert to fraction form
    103,745.10/155,398.95 = 92,664.30/x
  3. Step 3: Cross multiply
    103,745.10x = 155,398.95 × 92,664.30
  4. Step 4: Simplify right side
    103,745.10x = 14,399,934,922.49
  5. Step 5: Solve for x
    x = 14,399,934,922.49/103,745.10
  6. Step 6: Final answer
    x = 138,801.11

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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.