Home / 112,385.20-168,772.20-73,116.40

Finding the Fourth Proportional to 112,385.20, 168,772.20 and 73,116.40

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Solution

The fourth proportional to 112,385.20, 168,772.20 and 73,116.40 is: 109,801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,385.20 : 168,772.20 = 73,116.40 : x
  2. Step 2: Convert to fraction form
    112,385.20/168,772.20 = 73,116.40/x
  3. Step 3: Cross multiply
    112,385.20x = 168,772.20 × 73,116.40
  4. Step 4: Simplify right side
    112,385.20x = 12,340,015,684.08
  5. Step 5: Solve for x
    x = 12,340,015,684.08/112,385.20
  6. Step 6: Final answer
    x = 109,801.07

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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.