Home / 209,520.04-289,236.54-134,112.28

Finding the Fourth Proportional to 209,520.04, 289,236.54 and 134,112.28

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Solution

The fourth proportional to 209,520.04, 289,236.54 and 134,112.28 is: 185,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,520.04 : 289,236.54 = 134,112.28 : x
  2. Step 2: Convert to fraction form
    209,520.04/289,236.54 = 134,112.28/x
  3. Step 3: Cross multiply
    209,520.04x = 289,236.54 × 134,112.28
  4. Step 4: Simplify right side
    209,520.04x = 38,790,171,838.71
  5. Step 5: Solve for x
    x = 38,790,171,838.71/209,520.04
  6. Step 6: Final answer
    x = 185,138.24

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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.