Home / 215,975.60-323,963.40-103,636.70

Finding the Fourth Proportional to 215,975.60, 323,963.40 and 103,636.70

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Solution

The fourth proportional to 215,975.60, 323,963.40 and 103,636.70 is: 155,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,975.60 : 323,963.40 = 103,636.70 : x
  2. Step 2: Convert to fraction form
    215,975.60/323,963.40 = 103,636.70/x
  3. Step 3: Cross multiply
    215,975.60x = 323,963.40 × 103,636.70
  4. Step 4: Simplify right side
    215,975.60x = 33,574,497,696.78
  5. Step 5: Solve for x
    x = 33,574,497,696.78/215,975.60
  6. Step 6: Final answer
    x = 155,455.05

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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.