Home / 121,840.82-182,761.98-79,756.22

Finding the Fourth Proportional to 121,840.82, 182,761.98 and 79,756.22

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Solution

The fourth proportional to 121,840.82, 182,761.98 and 79,756.22 is: 119,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,840.82 : 182,761.98 = 79,756.22 : x
  2. Step 2: Convert to fraction form
    121,840.82/182,761.98 = 79,756.22/x
  3. Step 3: Cross multiply
    121,840.82x = 182,761.98 × 79,756.22
  4. Step 4: Simplify right side
    121,840.82x = 14,576,403,770.71
  5. Step 5: Solve for x
    x = 14,576,403,770.71/121,840.82
  6. Step 6: Final answer
    x = 119,634.82

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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.