Home / 122,522-169,079.76-68,811.76

Finding the Fourth Proportional to 122,522, 169,079.76 and 68,811.76

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Solution

The fourth proportional to 122,522, 169,079.76 and 68,811.76 is: 94,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,522 : 169,079.76 = 68,811.76 : x
  2. Step 2: Convert to fraction form
    122,522/169,079.76 = 68,811.76/x
  3. Step 3: Cross multiply
    122,522x = 169,079.76 × 68,811.76
  4. Step 4: Simplify right side
    122,522x = 11,634,675,865.98
  5. Step 5: Solve for x
    x = 11,634,675,865.98/122,522
  6. Step 6: Final answer
    x = 94,959.89

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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.