Home / 209,727.72-314,471.64-97,350.12

Finding the Fourth Proportional to 209,727.72, 314,471.64 and 97,350.12

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Solution

The fourth proportional to 209,727.72, 314,471.64 and 97,350.12 is: 145,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,727.72 : 314,471.64 = 97,350.12 : x
  2. Step 2: Convert to fraction form
    209,727.72/314,471.64 = 97,350.12/x
  3. Step 3: Cross multiply
    209,727.72x = 314,471.64 × 97,350.12
  4. Step 4: Simplify right side
    209,727.72x = 30,613,851,890.60
  5. Step 5: Solve for x
    x = 30,613,851,890.60/209,727.72
  6. Step 6: Final answer
    x = 145,969.51

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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.