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Finding the Fourth Proportional to 103,356, 142,608.96 and 60,899.04

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Solution

The fourth proportional to 103,356, 142,608.96 and 60,899.04 is: 84,027.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,356 : 142,608.96 = 60,899.04 : x
  2. Step 2: Convert to fraction form
    103,356/142,608.96 = 60,899.04/x
  3. Step 3: Cross multiply
    103,356x = 142,608.96 × 60,899.04
  4. Step 4: Simplify right side
    103,356x = 8,684,748,759.40
  5. Step 5: Solve for x
    x = 8,684,748,759.40/103,356
  6. Step 6: Final answer
    x = 84,027.52

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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.