Home / 208,177.75-287,285.43-112,685.23

Finding the Fourth Proportional to 208,177.75, 287,285.43 and 112,685.23

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Solution

The fourth proportional to 208,177.75, 287,285.43 and 112,685.23 is: 155,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,177.75 : 287,285.43 = 112,685.23 : x
  2. Step 2: Convert to fraction form
    208,177.75/287,285.43 = 112,685.23/x
  3. Step 3: Cross multiply
    208,177.75x = 287,285.43 × 112,685.23
  4. Step 4: Simplify right side
    208,177.75x = 32,372,824,755.20
  5. Step 5: Solve for x
    x = 32,372,824,755.20/208,177.75
  6. Step 6: Final answer
    x = 155,505.69

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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.