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Finding the Fourth Proportional to 88,507.68, 122,259.96 and 82,209.12

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Solution

The fourth proportional to 88,507.68, 122,259.96 and 82,209.12 is: 113,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,507.68 : 122,259.96 = 82,209.12 : x
  2. Step 2: Convert to fraction form
    88,507.68/122,259.96 = 82,209.12/x
  3. Step 3: Cross multiply
    88,507.68x = 122,259.96 × 82,209.12
  4. Step 4: Simplify right side
    88,507.68x = 10,050,883,722.84
  5. Step 5: Solve for x
    x = 10,050,883,722.84/88,507.68
  6. Step 6: Final answer
    x = 113,559.45

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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.