Home / 134,636.34-201,563.28-78,304.62

Finding the Fourth Proportional to 134,636.34, 201,563.28 and 78,304.62

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Solution

The fourth proportional to 134,636.34, 201,563.28 and 78,304.62 is: 117,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,636.34 : 201,563.28 = 78,304.62 : x
  2. Step 2: Convert to fraction form
    134,636.34/201,563.28 = 78,304.62/x
  3. Step 3: Cross multiply
    134,636.34x = 201,563.28 × 78,304.62
  4. Step 4: Simplify right side
    134,636.34x = 15,783,336,046.35
  5. Step 5: Solve for x
    x = 15,783,336,046.35/134,636.34
  6. Step 6: Final answer
    x = 117,229.39

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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.