Home / 103,633.40-155,334.90-56,919.80

Finding the Fourth Proportional to 103,633.40, 155,334.90 and 56,919.80

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Solution

The fourth proportional to 103,633.40, 155,334.90 and 56,919.80 is: 85,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633.40 : 155,334.90 = 56,919.80 : x
  2. Step 2: Convert to fraction form
    103,633.40/155,334.90 = 56,919.80/x
  3. Step 3: Cross multiply
    103,633.40x = 155,334.90 × 56,919.80
  4. Step 4: Simplify right side
    103,633.40x = 8,841,631,441.02
  5. Step 5: Solve for x
    x = 8,841,631,441.02/103,633.40
  6. Step 6: Final answer
    x = 85,316.43

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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.