Home / 209,645.73-289,312.20-114,152.13

Finding the Fourth Proportional to 209,645.73, 289,312.20 and 114,152.13

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Solution

The fourth proportional to 209,645.73, 289,312.20 and 114,152.13 is: 157,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,645.73 : 289,312.20 = 114,152.13 : x
  2. Step 2: Convert to fraction form
    209,645.73/289,312.20 = 114,152.13/x
  3. Step 3: Cross multiply
    209,645.73x = 289,312.20 × 114,152.13
  4. Step 4: Simplify right side
    209,645.73x = 33,025,603,864.99
  5. Step 5: Solve for x
    x = 33,025,603,864.99/209,645.73
  6. Step 6: Final answer
    x = 157,530.53

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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.