Home / 102,392.74-141,284.85-57,060.78

Finding the Fourth Proportional to 102,392.74, 141,284.85 and 57,060.78

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Solution

The fourth proportional to 102,392.74, 141,284.85 and 57,060.78 is: 78,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,392.74 : 141,284.85 = 57,060.78 : x
  2. Step 2: Convert to fraction form
    102,392.74/141,284.85 = 57,060.78/x
  3. Step 3: Cross multiply
    102,392.74x = 141,284.85 × 57,060.78
  4. Step 4: Simplify right side
    102,392.74x = 8,061,823,743.18
  5. Step 5: Solve for x
    x = 8,061,823,743.18/102,392.74
  6. Step 6: Final answer
    x = 78,734.33

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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.