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Finding the Fourth Proportional to 103,651.98, 143,038 and 58,329.91

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Solution

The fourth proportional to 103,651.98, 143,038 and 58,329.91 is: 80,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,651.98 : 143,038 = 58,329.91 : x
  2. Step 2: Convert to fraction form
    103,651.98/143,038 = 58,329.91/x
  3. Step 3: Cross multiply
    103,651.98x = 143,038 × 58,329.91
  4. Step 4: Simplify right side
    103,651.98x = 8,343,393,666.58
  5. Step 5: Solve for x
    x = 8,343,393,666.58/103,651.98
  6. Step 6: Final answer
    x = 80,494.30

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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.