Home / 87,216.23-120,263.76-75,784.74

Finding the Fourth Proportional to 87,216.23, 120,263.76 and 75,784.74

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Solution

The fourth proportional to 87,216.23, 120,263.76 and 75,784.74 is: 104,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,216.23 : 120,263.76 = 75,784.74 : x
  2. Step 2: Convert to fraction form
    87,216.23/120,263.76 = 75,784.74/x
  3. Step 3: Cross multiply
    87,216.23x = 120,263.76 × 75,784.74
  4. Step 4: Simplify right side
    87,216.23x = 9,114,157,783.02
  5. Step 5: Solve for x
    x = 9,114,157,783.02/87,216.23
  6. Step 6: Final answer
    x = 104,500.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.