Home / 102,830.88-141,874.32-57,502.74

Finding the Fourth Proportional to 102,830.88, 141,874.32 and 57,502.74

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Solution

The fourth proportional to 102,830.88, 141,874.32 and 57,502.74 is: 79,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,830.88 : 141,874.32 = 57,502.74 : x
  2. Step 2: Convert to fraction form
    102,830.88/141,874.32 = 57,502.74/x
  3. Step 3: Cross multiply
    102,830.88x = 141,874.32 × 57,502.74
  4. Step 4: Simplify right side
    102,830.88x = 8,158,162,135.64
  5. Step 5: Solve for x
    x = 8,158,162,135.64/102,830.88
  6. Step 6: Final answer
    x = 79,335.72

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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.