Home / 109,688.10-151,361.37-61,941.30

Finding the Fourth Proportional to 109,688.10, 151,361.37 and 61,941.30

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Solution

The fourth proportional to 109,688.10, 151,361.37 and 61,941.30 is: 85,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,688.10 : 151,361.37 = 61,941.30 : x
  2. Step 2: Convert to fraction form
    109,688.10/151,361.37 = 61,941.30/x
  3. Step 3: Cross multiply
    109,688.10x = 151,361.37 × 61,941.30
  4. Step 4: Simplify right side
    109,688.10x = 9,375,520,027.58
  5. Step 5: Solve for x
    x = 9,375,520,027.58/109,688.10
  6. Step 6: Final answer
    x = 85,474.36

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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.