Home / 131,947.99-182,056.51-78,246.20

Finding the Fourth Proportional to 131,947.99, 182,056.51 and 78,246.20

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Solution

The fourth proportional to 131,947.99, 182,056.51 and 78,246.20 is: 107,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,947.99 : 182,056.51 = 78,246.20 : x
  2. Step 2: Convert to fraction form
    131,947.99/182,056.51 = 78,246.20/x
  3. Step 3: Cross multiply
    131,947.99x = 182,056.51 × 78,246.20
  4. Step 4: Simplify right side
    131,947.99x = 14,245,230,645.71
  5. Step 5: Solve for x
    x = 14,245,230,645.71/131,947.99
  6. Step 6: Final answer
    x = 107,960.95

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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.