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Finding the Fourth Proportional to 103,448.26, 142,758.72 and 58,736.26

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Solution

The fourth proportional to 103,448.26, 142,758.72 and 58,736.26 is: 81,056.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,448.26 : 142,758.72 = 58,736.26 : x
  2. Step 2: Convert to fraction form
    103,448.26/142,758.72 = 58,736.26/x
  3. Step 3: Cross multiply
    103,448.26x = 142,758.72 × 58,736.26
  4. Step 4: Simplify right side
    103,448.26x = 8,385,113,295.19
  5. Step 5: Solve for x
    x = 8,385,113,295.19/103,448.26
  6. Step 6: Final answer
    x = 81,056.11

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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.