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Finding the Fourth Proportional to 75,157.28, 103,735.68 and 43,345.28

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Solution

The fourth proportional to 75,157.28, 103,735.68 and 43,345.28 is: 59,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.28 : 103,735.68 = 43,345.28 : x
  2. Step 2: Convert to fraction form
    75,157.28/103,735.68 = 43,345.28/x
  3. Step 3: Cross multiply
    75,157.28x = 103,735.68 × 43,345.28
  4. Step 4: Simplify right side
    75,157.28x = 4,496,452,095.59
  5. Step 5: Solve for x
    x = 4,496,452,095.59/75,157.28
  6. Step 6: Final answer
    x = 59,827.23

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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.