Home / 153,748.67-230,672.21-128,729.39

Finding the Fourth Proportional to 153,748.67, 230,672.21 and 128,729.39

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Solution

The fourth proportional to 153,748.67, 230,672.21 and 128,729.39 is: 193,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,748.67 : 230,672.21 = 128,729.39 : x
  2. Step 2: Convert to fraction form
    153,748.67/230,672.21 = 128,729.39/x
  3. Step 3: Cross multiply
    153,748.67x = 230,672.21 × 128,729.39
  4. Step 4: Simplify right side
    153,748.67x = 29,694,291,086.24
  5. Step 5: Solve for x
    x = 29,694,291,086.24/153,748.67
  6. Step 6: Final answer
    x = 193,135.28

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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.