Home / 209,617.73-289,277.69-114,129.66

Finding the Fourth Proportional to 209,617.73, 289,277.69 and 114,129.66

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Solution

The fourth proportional to 209,617.73, 289,277.69 and 114,129.66 is: 157,501.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,617.73 : 289,277.69 = 114,129.66 : x
  2. Step 2: Convert to fraction form
    209,617.73/289,277.69 = 114,129.66/x
  3. Step 3: Cross multiply
    209,617.73x = 289,277.69 × 114,129.66
  4. Step 4: Simplify right side
    209,617.73x = 33,015,164,405.29
  5. Step 5: Solve for x
    x = 33,015,164,405.29/209,617.73
  6. Step 6: Final answer
    x = 157,501.77

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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.