Home / 129,555.84-194,340.64-40,816.24

Finding the Fourth Proportional to 129,555.84, 194,340.64 and 40,816.24

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Solution

The fourth proportional to 129,555.84, 194,340.64 and 40,816.24 is: 61,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,555.84 : 194,340.64 = 40,816.24 : x
  2. Step 2: Convert to fraction form
    129,555.84/194,340.64 = 40,816.24/x
  3. Step 3: Cross multiply
    129,555.84x = 194,340.64 × 40,816.24
  4. Step 4: Simplify right side
    129,555.84x = 7,932,254,203.99
  5. Step 5: Solve for x
    x = 7,932,254,203.99/129,555.84
  6. Step 6: Final answer
    x = 61,226.53

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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.