Home / 129,418.50-194,028.93-40,620.63

Finding the Fourth Proportional to 129,418.50, 194,028.93 and 40,620.63

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Solution

The fourth proportional to 129,418.50, 194,028.93 and 40,620.63 is: 60,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,418.50 : 194,028.93 = 40,620.63 : x
  2. Step 2: Convert to fraction form
    129,418.50/194,028.93 = 40,620.63/x
  3. Step 3: Cross multiply
    129,418.50x = 194,028.93 × 40,620.63
  4. Step 4: Simplify right side
    129,418.50x = 7,881,577,374.83
  5. Step 5: Solve for x
    x = 7,881,577,374.83/129,418.50
  6. Step 6: Final answer
    x = 60,899.93

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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.