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Finding the Fourth Proportional to 103,662.52, 143,052.93 and 58,340.56

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Solution

The fourth proportional to 103,662.52, 143,052.93 and 58,340.56 is: 80,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662.52 : 143,052.93 = 58,340.56 : x
  2. Step 2: Convert to fraction form
    103,662.52/143,052.93 = 58,340.56/x
  3. Step 3: Cross multiply
    103,662.52x = 143,052.93 × 58,340.56
  4. Step 4: Simplify right side
    103,662.52x = 8,345,788,045.84
  5. Step 5: Solve for x
    x = 8,345,788,045.84/103,662.52
  6. Step 6: Final answer
    x = 80,509.21

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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.