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Finding the Fourth Proportional to 107,139.68, 147,850.08 and 59,392.88

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Solution

The fourth proportional to 107,139.68, 147,850.08 and 59,392.88 is: 81,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,139.68 : 147,850.08 = 59,392.88 : x
  2. Step 2: Convert to fraction form
    107,139.68/147,850.08 = 59,392.88/x
  3. Step 3: Cross multiply
    107,139.68x = 147,850.08 × 59,392.88
  4. Step 4: Simplify right side
    107,139.68x = 8,781,242,059.43
  5. Step 5: Solve for x
    x = 8,781,242,059.43/107,139.68
  6. Step 6: Final answer
    x = 81,960.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.