Home / 120,690.91-181,033.31-57,555.66

Finding the Fourth Proportional to 120,690.91, 181,033.31 and 57,555.66

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Solution

The fourth proportional to 120,690.91, 181,033.31 and 57,555.66 is: 86,332.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690.91 : 181,033.31 = 57,555.66 : x
  2. Step 2: Convert to fraction form
    120,690.91/181,033.31 = 57,555.66/x
  3. Step 3: Cross multiply
    120,690.91x = 181,033.31 × 57,555.66
  4. Step 4: Simplify right side
    120,690.91x = 10,419,492,461.80
  5. Step 5: Solve for x
    x = 10,419,492,461.80/120,690.91
  6. Step 6: Final answer
    x = 86,332.04

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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.