Home / 111,039.40-166,688.70-63,692.20

Finding the Fourth Proportional to 111,039.40, 166,688.70 and 63,692.20

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Solution

The fourth proportional to 111,039.40, 166,688.70 and 63,692.20 is: 95,612.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,039.40 : 166,688.70 = 63,692.20 : x
  2. Step 2: Convert to fraction form
    111,039.40/166,688.70 = 63,692.20/x
  3. Step 3: Cross multiply
    111,039.40x = 166,688.70 × 63,692.20
  4. Step 4: Simplify right side
    111,039.40x = 10,616,770,018.14
  5. Step 5: Solve for x
    x = 10,616,770,018.14/111,039.40
  6. Step 6: Final answer
    x = 95,612.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.