Home / 134,387.64-201,758.58-78,279.48

Finding the Fourth Proportional to 134,387.64, 201,758.58 and 78,279.48

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Solution

The fourth proportional to 134,387.64, 201,758.58 and 78,279.48 is: 117,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,387.64 : 201,758.58 = 78,279.48 : x
  2. Step 2: Convert to fraction form
    134,387.64/201,758.58 = 78,279.48/x
  3. Step 3: Cross multiply
    134,387.64x = 201,758.58 × 78,279.48
  4. Step 4: Simplify right side
    134,387.64x = 15,793,556,727.94
  5. Step 5: Solve for x
    x = 15,793,556,727.94/134,387.64
  6. Step 6: Final answer
    x = 117,522.39

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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.