Home / 131,120.71-180,975.23-83,364.73

Finding the Fourth Proportional to 131,120.71, 180,975.23 and 83,364.73

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Solution

The fourth proportional to 131,120.71, 180,975.23 and 83,364.73 is: 115,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,120.71 : 180,975.23 = 83,364.73 : x
  2. Step 2: Convert to fraction form
    131,120.71/180,975.23 = 83,364.73/x
  3. Step 3: Cross multiply
    131,120.71x = 180,975.23 × 83,364.73
  4. Step 4: Simplify right side
    131,120.71x = 15,086,950,628.99
  5. Step 5: Solve for x
    x = 15,086,950,628.99/131,120.71
  6. Step 6: Final answer
    x = 115,061.54

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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.