Home / 88,909.17-122,739.26-68,720.46

Finding the Fourth Proportional to 88,909.17, 122,739.26 and 68,720.46

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Solution

The fourth proportional to 88,909.17, 122,739.26 and 68,720.46 is: 94,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,909.17 : 122,739.26 = 68,720.46 : x
  2. Step 2: Convert to fraction form
    88,909.17/122,739.26 = 68,720.46/x
  3. Step 3: Cross multiply
    88,909.17x = 122,739.26 × 68,720.46
  4. Step 4: Simplify right side
    88,909.17x = 8,434,698,407.26
  5. Step 5: Solve for x
    x = 8,434,698,407.26/88,909.17
  6. Step 6: Final answer
    x = 94,868.71

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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.