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Finding the Fourth Proportional to 113,464.94, 169,992.10 and 81,703.04

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Solution

The fourth proportional to 113,464.94, 169,992.10 and 81,703.04 is: 122,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,464.94 : 169,992.10 = 81,703.04 : x
  2. Step 2: Convert to fraction form
    113,464.94/169,992.10 = 81,703.04/x
  3. Step 3: Cross multiply
    113,464.94x = 169,992.10 × 81,703.04
  4. Step 4: Simplify right side
    113,464.94x = 13,888,871,345.98
  5. Step 5: Solve for x
    x = 13,888,871,345.98/113,464.94
  6. Step 6: Final answer
    x = 122,406.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.