Home / 208,194.78-287,308.95-112,701.18

Finding the Fourth Proportional to 208,194.78, 287,308.95 and 112,701.18

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Solution

The fourth proportional to 208,194.78, 287,308.95 and 112,701.18 is: 155,527.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,194.78 : 287,308.95 = 112,701.18 : x
  2. Step 2: Convert to fraction form
    208,194.78/287,308.95 = 112,701.18/x
  3. Step 3: Cross multiply
    208,194.78x = 287,308.95 × 112,701.18
  4. Step 4: Simplify right side
    208,194.78x = 32,380,057,689.56
  5. Step 5: Solve for x
    x = 32,380,057,689.56/208,194.78
  6. Step 6: Final answer
    x = 155,527.71

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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.