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Finding the Fourth Proportional to 101,372.32, 139,881.36 and 58,940.32

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Solution

The fourth proportional to 101,372.32, 139,881.36 and 58,940.32 is: 81,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,372.32 : 139,881.36 = 58,940.32 : x
  2. Step 2: Convert to fraction form
    101,372.32/139,881.36 = 58,940.32/x
  3. Step 3: Cross multiply
    101,372.32x = 139,881.36 × 58,940.32
  4. Step 4: Simplify right side
    101,372.32x = 8,244,652,120.44
  5. Step 5: Solve for x
    x = 8,244,652,120.44/101,372.32
  6. Step 6: Final answer
    x = 81,330.41

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1.5x scale

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.