Home / 131,951.99-182,089.33-78,205.10

Finding the Fourth Proportional to 131,951.99, 182,089.33 and 78,205.10

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Solution

The fourth proportional to 131,951.99, 182,089.33 and 78,205.10 is: 107,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,951.99 : 182,089.33 = 78,205.10 : x
  2. Step 2: Convert to fraction form
    131,951.99/182,089.33 = 78,205.10/x
  3. Step 3: Cross multiply
    131,951.99x = 182,089.33 × 78,205.10
  4. Step 4: Simplify right side
    131,951.99x = 14,240,313,155.62
  5. Step 5: Solve for x
    x = 14,240,313,155.62/131,951.99
  6. Step 6: Final answer
    x = 107,920.41

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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.