Home / 113,997.40-157,234.80-80,013.44

Finding the Fourth Proportional to 113,997.40, 157,234.80 and 80,013.44

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Solution

The fourth proportional to 113,997.40, 157,234.80 and 80,013.44 is: 110,361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,997.40 : 157,234.80 = 80,013.44 : x
  2. Step 2: Convert to fraction form
    113,997.40/157,234.80 = 80,013.44/x
  3. Step 3: Cross multiply
    113,997.40x = 157,234.80 × 80,013.44
  4. Step 4: Simplify right side
    113,997.40x = 12,580,897,235.71
  5. Step 5: Solve for x
    x = 12,580,897,235.71/113,997.40
  6. Step 6: Final answer
    x = 110,361.26

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1.5x scale

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.