Home / 208,034.55-287,089.73-112,543.30

Finding the Fourth Proportional to 208,034.55, 287,089.73 and 112,543.30

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Solution

The fourth proportional to 208,034.55, 287,089.73 and 112,543.30 is: 155,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,034.55 : 287,089.73 = 112,543.30 : x
  2. Step 2: Convert to fraction form
    208,034.55/287,089.73 = 112,543.30/x
  3. Step 3: Cross multiply
    208,034.55x = 287,089.73 × 112,543.30
  4. Step 4: Simplify right side
    208,034.55x = 32,310,025,610.31
  5. Step 5: Solve for x
    x = 32,310,025,610.31/208,034.55
  6. Step 6: Final answer
    x = 155,310.86

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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.