Home / 109,080.20-163,620.30-56,505.80

Finding the Fourth Proportional to 109,080.20, 163,620.30 and 56,505.80

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Solution

The fourth proportional to 109,080.20, 163,620.30 and 56,505.80 is: 84,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,080.20 : 163,620.30 = 56,505.80 : x
  2. Step 2: Convert to fraction form
    109,080.20/163,620.30 = 56,505.80/x
  3. Step 3: Cross multiply
    109,080.20x = 163,620.30 × 56,505.80
  4. Step 4: Simplify right side
    109,080.20x = 9,245,495,947.74
  5. Step 5: Solve for x
    x = 9,245,495,947.74/109,080.20
  6. Step 6: Final answer
    x = 84,758.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.