Home / 131,535.17-181,477.14-80,494.68

Finding the Fourth Proportional to 131,535.17, 181,477.14 and 80,494.68

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Solution

The fourth proportional to 131,535.17, 181,477.14 and 80,494.68 is: 111,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,535.17 : 181,477.14 = 80,494.68 : x
  2. Step 2: Convert to fraction form
    131,535.17/181,477.14 = 80,494.68/x
  3. Step 3: Cross multiply
    131,535.17x = 181,477.14 × 80,494.68
  4. Step 4: Simplify right side
    131,535.17x = 14,607,944,690.30
  5. Step 5: Solve for x
    x = 14,607,944,690.30/131,535.17
  6. Step 6: Final answer
    x = 111,057.33

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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.