Home / 102,126.25-140,932.20-56,803.26

Finding the Fourth Proportional to 102,126.25, 140,932.20 and 56,803.26

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Solution

The fourth proportional to 102,126.25, 140,932.20 and 56,803.26 is: 78,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.25 : 140,932.20 = 56,803.26 : x
  2. Step 2: Convert to fraction form
    102,126.25/140,932.20 = 56,803.26/x
  3. Step 3: Cross multiply
    102,126.25x = 140,932.20 × 56,803.26
  4. Step 4: Simplify right side
    102,126.25x = 8,005,408,611.98
  5. Step 5: Solve for x
    x = 8,005,408,611.98/102,126.25
  6. Step 6: Final answer
    x = 78,387.37

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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.