Home / 131,660.69-181,713.49-80,701.77

Finding the Fourth Proportional to 131,660.69, 181,713.49 and 80,701.77

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Solution

The fourth proportional to 131,660.69, 181,713.49 and 80,701.77 is: 111,381.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,660.69 : 181,713.49 = 80,701.77 : x
  2. Step 2: Convert to fraction form
    131,660.69/181,713.49 = 80,701.77/x
  3. Step 3: Cross multiply
    131,660.69x = 181,713.49 × 80,701.77
  4. Step 4: Simplify right side
    131,660.69x = 14,664,600,275.88
  5. Step 5: Solve for x
    x = 14,664,600,275.88/131,660.69
  6. Step 6: Final answer
    x = 111,381.77

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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.