Home / 120,930.12-181,093.50-76,422.60

Finding the Fourth Proportional to 120,930.12, 181,093.50 and 76,422.60

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Solution

The fourth proportional to 120,930.12, 181,093.50 and 76,422.60 is: 114,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,930.12 : 181,093.50 = 76,422.60 : x
  2. Step 2: Convert to fraction form
    120,930.12/181,093.50 = 76,422.60/x
  3. Step 3: Cross multiply
    120,930.12x = 181,093.50 × 76,422.60
  4. Step 4: Simplify right side
    120,930.12x = 13,839,636,113.10
  5. Step 5: Solve for x
    x = 13,839,636,113.10/120,930.12
  6. Step 6: Final answer
    x = 114,443.25

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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.