Home / 208,120.60-287,206.40-112,627.29

Finding the Fourth Proportional to 208,120.60, 287,206.40 and 112,627.29

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Solution

The fourth proportional to 208,120.60, 287,206.40 and 112,627.29 is: 155,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,120.60 : 287,206.40 = 112,627.29 : x
  2. Step 2: Convert to fraction form
    208,120.60/287,206.40 = 112,627.29/x
  3. Step 3: Cross multiply
    208,120.60x = 287,206.40 × 112,627.29
  4. Step 4: Simplify right side
    208,120.60x = 32,347,278,502.66
  5. Step 5: Solve for x
    x = 32,347,278,502.66/208,120.60
  6. Step 6: Final answer
    x = 155,425.65

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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.