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Finding the Fourth Proportional to 103,475, 142,795.68 and 58,763

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Solution

The fourth proportional to 103,475, 142,795.68 and 58,763 is: 81,093.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,475 : 142,795.68 = 58,763 : x
  2. Step 2: Convert to fraction form
    103,475/142,795.68 = 58,763/x
  3. Step 3: Cross multiply
    103,475x = 142,795.68 × 58,763
  4. Step 4: Simplify right side
    103,475x = 8,391,102,543.84
  5. Step 5: Solve for x
    x = 8,391,102,543.84/103,475
  6. Step 6: Final answer
    x = 81,093.04

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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.