Home / 209,557.19-289,213.52-117,691.54

Finding the Fourth Proportional to 209,557.19, 289,213.52 and 117,691.54

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Solution

The fourth proportional to 209,557.19, 289,213.52 and 117,691.54 is: 162,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,557.19 : 289,213.52 = 117,691.54 : x
  2. Step 2: Convert to fraction form
    209,557.19/289,213.52 = 117,691.54/x
  3. Step 3: Cross multiply
    209,557.19x = 289,213.52 × 117,691.54
  4. Step 4: Simplify right side
    209,557.19x = 34,037,983,246.13
  5. Step 5: Solve for x
    x = 34,037,983,246.13/209,557.19
  6. Step 6: Final answer
    x = 162,428.13

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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.