Home / 188,717.70-260,512.12-134,909.40

Finding the Fourth Proportional to 188,717.70, 260,512.12 and 134,909.40

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Solution

The fourth proportional to 188,717.70, 260,512.12 and 134,909.40 is: 186,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,717.70 : 260,512.12 = 134,909.40 : x
  2. Step 2: Convert to fraction form
    188,717.70/260,512.12 = 134,909.40/x
  3. Step 3: Cross multiply
    188,717.70x = 260,512.12 × 134,909.40
  4. Step 4: Simplify right side
    188,717.70x = 35,145,533,801.93
  5. Step 5: Solve for x
    x = 35,145,533,801.93/188,717.70
  6. Step 6: Final answer
    x = 186,233.37

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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.