Home / 180,389.72-270,677.92-130,878.46

Finding the Fourth Proportional to 180,389.72, 270,677.92 and 130,878.46

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Solution

The fourth proportional to 180,389.72, 270,677.92 and 130,878.46 is: 196,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,389.72 : 270,677.92 = 130,878.46 : x
  2. Step 2: Convert to fraction form
    180,389.72/270,677.92 = 130,878.46/x
  3. Step 3: Cross multiply
    180,389.72x = 270,677.92 × 130,878.46
  4. Step 4: Simplify right side
    180,389.72x = 35,425,909,325.60
  5. Step 5: Solve for x
    x = 35,425,909,325.60/180,389.72
  6. Step 6: Final answer
    x = 196,385.41

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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.