Home / 103,748.10-155,403.45-92,667.30

Finding the Fourth Proportional to 103,748.10, 155,403.45 and 92,667.30

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Solution

The fourth proportional to 103,748.10, 155,403.45 and 92,667.30 is: 138,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,748.10 : 155,403.45 = 92,667.30 : x
  2. Step 2: Convert to fraction form
    103,748.10/155,403.45 = 92,667.30/x
  3. Step 3: Cross multiply
    103,748.10x = 155,403.45 × 92,667.30
  4. Step 4: Simplify right side
    103,748.10x = 14,400,818,122.19
  5. Step 5: Solve for x
    x = 14,400,818,122.19/103,748.10
  6. Step 6: Final answer
    x = 138,805.61

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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.