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Finding the Fourth Proportional to 107,149.76, 147,873.12 and 59,405.12

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Solution

The fourth proportional to 107,149.76, 147,873.12 and 59,405.12 is: 81,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,149.76 : 147,873.12 = 59,405.12 : x
  2. Step 2: Convert to fraction form
    107,149.76/147,873.12 = 59,405.12/x
  3. Step 3: Cross multiply
    107,149.76x = 147,873.12 × 59,405.12
  4. Step 4: Simplify right side
    107,149.76x = 8,784,420,438.37
  5. Step 5: Solve for x
    x = 8,784,420,438.37/107,149.76
  6. Step 6: Final answer
    x = 81,982.64

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1.5x scale

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.