Home / 112,743.70-155,584.60-61,756.02

Finding the Fourth Proportional to 112,743.70, 155,584.60 and 61,756.02

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Solution

The fourth proportional to 112,743.70, 155,584.60 and 61,756.02 is: 85,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,743.70 : 155,584.60 = 61,756.02 : x
  2. Step 2: Convert to fraction form
    112,743.70/155,584.60 = 61,756.02/x
  3. Step 3: Cross multiply
    112,743.70x = 155,584.60 × 61,756.02
  4. Step 4: Simplify right side
    112,743.70x = 9,608,285,514.90
  5. Step 5: Solve for x
    x = 9,608,285,514.90/112,743.70
  6. Step 6: Final answer
    x = 85,222.37

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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.