Home / 208,049.20-287,107.92-112,555.84

Finding the Fourth Proportional to 208,049.20, 287,107.92 and 112,555.84

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Solution

The fourth proportional to 208,049.20, 287,107.92 and 112,555.84 is: 155,327.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049.20 : 287,107.92 = 112,555.84 : x
  2. Step 2: Convert to fraction form
    208,049.20/287,107.92 = 112,555.84/x
  3. Step 3: Cross multiply
    208,049.20x = 287,107.92 × 112,555.84
  4. Step 4: Simplify right side
    208,049.20x = 32,315,673,106.25
  5. Step 5: Solve for x
    x = 32,315,673,106.25/208,049.20
  6. Step 6: Final answer
    x = 155,327.07

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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.