Home / 137,834.10-190,196.91-77,411.43

Finding the Fourth Proportional to 137,834.10, 190,196.91 and 77,411.43

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Solution

The fourth proportional to 137,834.10, 190,196.91 and 77,411.43 is: 106,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,834.10 : 190,196.91 = 77,411.43 : x
  2. Step 2: Convert to fraction form
    137,834.10/190,196.91 = 77,411.43/x
  3. Step 3: Cross multiply
    137,834.10x = 190,196.91 × 77,411.43
  4. Step 4: Simplify right side
    137,834.10x = 14,723,414,784.68
  5. Step 5: Solve for x
    x = 14,723,414,784.68/137,834.10
  6. Step 6: Final answer
    x = 106,819.83

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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.