Home / 140,161.98-210,131.37-80,930.46

Finding the Fourth Proportional to 140,161.98, 210,131.37 and 80,930.46

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Solution

The fourth proportional to 140,161.98, 210,131.37 and 80,930.46 is: 121,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,161.98 : 210,131.37 = 80,930.46 : x
  2. Step 2: Convert to fraction form
    140,161.98/210,131.37 = 80,930.46/x
  3. Step 3: Cross multiply
    140,161.98x = 210,131.37 × 80,930.46
  4. Step 4: Simplify right side
    140,161.98x = 17,006,028,434.53
  5. Step 5: Solve for x
    x = 17,006,028,434.53/140,161.98
  6. Step 6: Final answer
    x = 121,331.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.