Home / 102,451.32-141,377.40-57,133.98

Finding the Fourth Proportional to 102,451.32, 141,377.40 and 57,133.98

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Solution

The fourth proportional to 102,451.32, 141,377.40 and 57,133.98 is: 78,841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,451.32 : 141,377.40 = 57,133.98 : x
  2. Step 2: Convert to fraction form
    102,451.32/141,377.40 = 57,133.98/x
  3. Step 3: Cross multiply
    102,451.32x = 141,377.40 × 57,133.98
  4. Step 4: Simplify right side
    102,451.32x = 8,077,453,544.05
  5. Step 5: Solve for x
    x = 8,077,453,544.05/102,451.32
  6. Step 6: Final answer
    x = 78,841.87

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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.