Home / 114,307.08-171,723.78-81,109.32

Finding the Fourth Proportional to 114,307.08, 171,723.78 and 81,109.32

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Solution

The fourth proportional to 114,307.08, 171,723.78 and 81,109.32 is: 121,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,307.08 : 171,723.78 = 81,109.32 : x
  2. Step 2: Convert to fraction form
    114,307.08/171,723.78 = 81,109.32/x
  3. Step 3: Cross multiply
    114,307.08x = 171,723.78 × 81,109.32
  4. Step 4: Simplify right side
    114,307.08x = 13,928,399,023.63
  5. Step 5: Solve for x
    x = 13,928,399,023.63/114,307.08
  6. Step 6: Final answer
    x = 121,850.71

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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.