Home / 111,943.41-154,219.10-77,893.43

Finding the Fourth Proportional to 111,943.41, 154,219.10 and 77,893.43

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Solution

The fourth proportional to 111,943.41, 154,219.10 and 77,893.43 is: 107,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,943.41 : 154,219.10 = 77,893.43 : x
  2. Step 2: Convert to fraction form
    111,943.41/154,219.10 = 77,893.43/x
  3. Step 3: Cross multiply
    111,943.41x = 154,219.10 × 77,893.43
  4. Step 4: Simplify right side
    111,943.41x = 12,012,653,509.95
  5. Step 5: Solve for x
    x = 12,012,653,509.95/111,943.41
  6. Step 6: Final answer
    x = 107,310.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.