Home / 210,133.96-289,984.50-114,640.66

Finding the Fourth Proportional to 210,133.96, 289,984.50 and 114,640.66

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Solution

The fourth proportional to 210,133.96, 289,984.50 and 114,640.66 is: 158,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,133.96 : 289,984.50 = 114,640.66 : x
  2. Step 2: Convert to fraction form
    210,133.96/289,984.50 = 114,640.66/x
  3. Step 3: Cross multiply
    210,133.96x = 289,984.50 × 114,640.66
  4. Step 4: Simplify right side
    210,133.96x = 33,244,014,469.77
  5. Step 5: Solve for x
    x = 33,244,014,469.77/210,133.96
  6. Step 6: Final answer
    x = 158,203.91

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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.