Home / 102,512.76-141,474.06-57,803.64

Finding the Fourth Proportional to 102,512.76, 141,474.06 and 57,803.64

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Solution

The fourth proportional to 102,512.76, 141,474.06 and 57,803.64 is: 79,772.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,512.76 : 141,474.06 = 57,803.64 : x
  2. Step 2: Convert to fraction form
    102,512.76/141,474.06 = 57,803.64/x
  3. Step 3: Cross multiply
    102,512.76x = 141,474.06 × 57,803.64
  4. Step 4: Simplify right side
    102,512.76x = 8,177,715,633.58
  5. Step 5: Solve for x
    x = 8,177,715,633.58/102,512.76
  6. Step 6: Final answer
    x = 79,772.66

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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.