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Finding the Fourth Proportional to 207,069.36, 310,557.87 and 80,713.01

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Solution

The fourth proportional to 207,069.36, 310,557.87 and 80,713.01 is: 121,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,069.36 : 310,557.87 = 80,713.01 : x
  2. Step 2: Convert to fraction form
    207,069.36/310,557.87 = 80,713.01/x
  3. Step 3: Cross multiply
    207,069.36x = 310,557.87 × 80,713.01
  4. Step 4: Simplify right side
    207,069.36x = 25,066,058,914.10
  5. Step 5: Solve for x
    x = 25,066,058,914.10/207,069.36
  6. Step 6: Final answer
    x = 121,051.51

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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.