Home / 209,383.02-288,945.63-113,887.53

Finding the Fourth Proportional to 209,383.02, 288,945.63 and 113,887.53

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Solution

The fourth proportional to 209,383.02, 288,945.63 and 113,887.53 is: 157,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,383.02 : 288,945.63 = 113,887.53 : x
  2. Step 2: Convert to fraction form
    209,383.02/288,945.63 = 113,887.53/x
  3. Step 3: Cross multiply
    209,383.02x = 288,945.63 × 113,887.53
  4. Step 4: Simplify right side
    209,383.02x = 32,907,304,104.99
  5. Step 5: Solve for x
    x = 32,907,304,104.99/209,383.02
  6. Step 6: Final answer
    x = 157,163.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.