Home / 99,189.37-136,847.10-63,400.33

Finding the Fourth Proportional to 99,189.37, 136,847.10 and 63,400.33

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Solution

The fourth proportional to 99,189.37, 136,847.10 and 63,400.33 is: 87,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,189.37 : 136,847.10 = 63,400.33 : x
  2. Step 2: Convert to fraction form
    99,189.37/136,847.10 = 63,400.33/x
  3. Step 3: Cross multiply
    99,189.37x = 136,847.10 × 63,400.33
  4. Step 4: Simplify right side
    99,189.37x = 8,676,151,299.54
  5. Step 5: Solve for x
    x = 8,676,151,299.54/99,189.37
  6. Step 6: Final answer
    x = 87,470.58

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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.