Home / 122,580.86-169,157.66-68,132.76

Finding the Fourth Proportional to 122,580.86, 169,157.66 and 68,132.76

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Solution

The fourth proportional to 122,580.86, 169,157.66 and 68,132.76 is: 94,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,580.86 : 169,157.66 = 68,132.76 : x
  2. Step 2: Convert to fraction form
    122,580.86/169,157.66 = 68,132.76/x
  3. Step 3: Cross multiply
    122,580.86x = 169,157.66 × 68,132.76
  4. Step 4: Simplify right side
    122,580.86x = 11,525,178,250.94
  5. Step 5: Solve for x
    x = 11,525,178,250.94/122,580.86
  6. Step 6: Final answer
    x = 94,021.03

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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.