Home / 120,926.12-181,087.50-76,418.60

Finding the Fourth Proportional to 120,926.12, 181,087.50 and 76,418.60

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Solution

The fourth proportional to 120,926.12, 181,087.50 and 76,418.60 is: 114,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,926.12 : 181,087.50 = 76,418.60 : x
  2. Step 2: Convert to fraction form
    120,926.12/181,087.50 = 76,418.60/x
  3. Step 3: Cross multiply
    120,926.12x = 181,087.50 × 76,418.60
  4. Step 4: Simplify right side
    120,926.12x = 13,838,453,227.50
  5. Step 5: Solve for x
    x = 13,838,453,227.50/120,926.12
  6. Step 6: Final answer
    x = 114,437.25

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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.