Home / 113,768.10-156,998.70-62,781.22

Finding the Fourth Proportional to 113,768.10, 156,998.70 and 62,781.22

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Solution

The fourth proportional to 113,768.10, 156,998.70 and 62,781.22 is: 86,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,768.10 : 156,998.70 = 62,781.22 : x
  2. Step 2: Convert to fraction form
    113,768.10/156,998.70 = 62,781.22/x
  3. Step 3: Cross multiply
    113,768.10x = 156,998.70 × 62,781.22
  4. Step 4: Simplify right side
    113,768.10x = 9,856,569,924.41
  5. Step 5: Solve for x
    x = 9,856,569,924.41/113,768.10
  6. Step 6: Final answer
    x = 86,637.38

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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.