Home / 136,046.26-203,730-85,975.30

Finding the Fourth Proportional to 136,046.26, 203,730 and 85,975.30

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Solution

The fourth proportional to 136,046.26, 203,730 and 85,975.30 is: 128,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,046.26 : 203,730 = 85,975.30 : x
  2. Step 2: Convert to fraction form
    136,046.26/203,730 = 85,975.30/x
  3. Step 3: Cross multiply
    136,046.26x = 203,730 × 85,975.30
  4. Step 4: Simplify right side
    136,046.26x = 17,515,747,869
  5. Step 5: Solve for x
    x = 17,515,747,869/136,046.26
  6. Step 6: Final answer
    x = 128,748.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.