Home / 103,554.45-155,331.68-57,102.57

Finding the Fourth Proportional to 103,554.45, 155,331.68 and 57,102.57

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Solution

The fourth proportional to 103,554.45, 155,331.68 and 57,102.57 is: 85,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,554.45 : 155,331.68 = 57,102.57 : x
  2. Step 2: Convert to fraction form
    103,554.45/155,331.68 = 57,102.57/x
  3. Step 3: Cross multiply
    103,554.45x = 155,331.68 × 57,102.57
  4. Step 4: Simplify right side
    103,554.45x = 8,869,837,844.90
  5. Step 5: Solve for x
    x = 8,869,837,844.90/103,554.45
  6. Step 6: Final answer
    x = 85,653.86

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Similar ratio
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1.5x scale

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.