Home / 187,165.50-280,579.77-68,811.54

Finding the Fourth Proportional to 187,165.50, 280,579.77 and 68,811.54

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Solution

The fourth proportional to 187,165.50, 280,579.77 and 68,811.54 is: 103,155.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,165.50 : 280,579.77 = 68,811.54 : x
  2. Step 2: Convert to fraction form
    187,165.50/280,579.77 = 68,811.54/x
  3. Step 3: Cross multiply
    187,165.50x = 280,579.77 × 68,811.54
  4. Step 4: Simplify right side
    187,165.50x = 19,307,126,066.55
  5. Step 5: Solve for x
    x = 19,307,126,066.55/187,165.50
  6. Step 6: Final answer
    x = 103,155.37

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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.