Home / 209,322.78-314,117.37-76,190.10

Finding the Fourth Proportional to 209,322.78, 314,117.37 and 76,190.10

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Solution

The fourth proportional to 209,322.78, 314,117.37 and 76,190.10 is: 114,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.78 : 314,117.37 = 76,190.10 : x
  2. Step 2: Convert to fraction form
    209,322.78/314,117.37 = 76,190.10/x
  3. Step 3: Cross multiply
    209,322.78x = 314,117.37 × 76,190.10
  4. Step 4: Simplify right side
    209,322.78x = 23,932,633,832.04
  5. Step 5: Solve for x
    x = 23,932,633,832.04/209,322.78
  6. Step 6: Final answer
    x = 114,333.63

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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.