Home / 81,832.23-122,066.81-80,477.51

Finding the Fourth Proportional to 81,832.23, 122,066.81 and 80,477.51

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Solution

The fourth proportional to 81,832.23, 122,066.81 and 80,477.51 is: 120,046.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,832.23 : 122,066.81 = 80,477.51 : x
  2. Step 2: Convert to fraction form
    81,832.23/122,066.81 = 80,477.51/x
  3. Step 3: Cross multiply
    81,832.23x = 122,066.81 × 80,477.51
  4. Step 4: Simplify right side
    81,832.23x = 9,823,631,909.72
  5. Step 5: Solve for x
    x = 9,823,631,909.72/81,832.23
  6. Step 6: Final answer
    x = 120,046.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.