Home / 208,128.24-287,215.96-112,634.80

Finding the Fourth Proportional to 208,128.24, 287,215.96 and 112,634.80

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Solution

The fourth proportional to 208,128.24, 287,215.96 and 112,634.80 is: 155,435.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,128.24 : 287,215.96 = 112,634.80 : x
  2. Step 2: Convert to fraction form
    208,128.24/287,215.96 = 112,634.80/x
  3. Step 3: Cross multiply
    208,128.24x = 287,215.96 × 112,634.80
  4. Step 4: Simplify right side
    208,128.24x = 32,350,512,211.41
  5. Step 5: Solve for x
    x = 32,350,512,211.41/208,128.24
  6. Step 6: Final answer
    x = 155,435.48

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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.