Home / 134,306.74-201,395.30-78,159.39

Finding the Fourth Proportional to 134,306.74, 201,395.30 and 78,159.39

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Solution

The fourth proportional to 134,306.74, 201,395.30 and 78,159.39 is: 117,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,306.74 : 201,395.30 = 78,159.39 : x
  2. Step 2: Convert to fraction form
    134,306.74/201,395.30 = 78,159.39/x
  3. Step 3: Cross multiply
    134,306.74x = 201,395.30 × 78,159.39
  4. Step 4: Simplify right side
    134,306.74x = 15,740,932,650.84
  5. Step 5: Solve for x
    x = 15,740,932,650.84/134,306.74
  6. Step 6: Final answer
    x = 117,201.36

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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.