Home / 121,736.70-182,605.05-103,074.30

Finding the Fourth Proportional to 121,736.70, 182,605.05 and 103,074.30

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Solution

The fourth proportional to 121,736.70, 182,605.05 and 103,074.30 is: 154,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,736.70 : 182,605.05 = 103,074.30 : x
  2. Step 2: Convert to fraction form
    121,736.70/182,605.05 = 103,074.30/x
  3. Step 3: Cross multiply
    121,736.70x = 182,605.05 × 103,074.30
  4. Step 4: Simplify right side
    121,736.70x = 18,821,887,705.22
  5. Step 5: Solve for x
    x = 18,821,887,705.22/121,736.70
  6. Step 6: Final answer
    x = 154,611.45

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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.