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Finding the Fourth Proportional to 82,635.96, 124,403.64 and 75,287.64

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Solution

The fourth proportional to 82,635.96, 124,403.64 and 75,287.64 is: 113,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,635.96 : 124,403.64 = 75,287.64 : x
  2. Step 2: Convert to fraction form
    82,635.96/124,403.64 = 75,287.64/x
  3. Step 3: Cross multiply
    82,635.96x = 124,403.64 × 75,287.64
  4. Step 4: Simplify right side
    82,635.96x = 9,366,056,463.01
  5. Step 5: Solve for x
    x = 9,366,056,463.01/82,635.96
  6. Step 6: Final answer
    x = 113,341.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.