Home / 131,005.20-180,783.22-73,645.05

Finding the Fourth Proportional to 131,005.20, 180,783.22 and 73,645.05

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Solution

The fourth proportional to 131,005.20, 180,783.22 and 73,645.05 is: 101,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,005.20 : 180,783.22 = 73,645.05 : x
  2. Step 2: Convert to fraction form
    131,005.20/180,783.22 = 73,645.05/x
  3. Step 3: Cross multiply
    131,005.20x = 180,783.22 × 73,645.05
  4. Step 4: Simplify right side
    131,005.20x = 13,313,789,276.06
  5. Step 5: Solve for x
    x = 13,313,789,276.06/131,005.20
  6. Step 6: Final answer
    x = 101,627.95

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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.