Home / 108,435.78-149,650.74-60,688.44

Finding the Fourth Proportional to 108,435.78, 149,650.74 and 60,688.44

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Solution

The fourth proportional to 108,435.78, 149,650.74 and 60,688.44 is: 83,755.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,435.78 : 149,650.74 = 60,688.44 : x
  2. Step 2: Convert to fraction form
    108,435.78/149,650.74 = 60,688.44/x
  3. Step 3: Cross multiply
    108,435.78x = 149,650.74 × 60,688.44
  4. Step 4: Simplify right side
    108,435.78x = 9,082,069,955.45
  5. Step 5: Solve for x
    x = 9,082,069,955.45/108,435.78
  6. Step 6: Final answer
    x = 83,755.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.