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Finding the Fourth Proportional to 130,893.64, 195,453.74 and 103,937.11

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Solution

The fourth proportional to 130,893.64, 195,453.74 and 103,937.11 is: 155,201.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,893.64 : 195,453.74 = 103,937.11 : x
  2. Step 2: Convert to fraction form
    130,893.64/195,453.74 = 103,937.11/x
  3. Step 3: Cross multiply
    130,893.64x = 195,453.74 × 103,937.11
  4. Step 4: Simplify right side
    130,893.64x = 20,314,896,645.50
  5. Step 5: Solve for x
    x = 20,314,896,645.50/130,893.64
  6. Step 6: Final answer
    x = 155,201.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.