Home / 127,663.14-191,439.30-43,400.70

Finding the Fourth Proportional to 127,663.14, 191,439.30 and 43,400.70

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Solution

The fourth proportional to 127,663.14, 191,439.30 and 43,400.70 is: 65,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,663.14 : 191,439.30 = 43,400.70 : x
  2. Step 2: Convert to fraction form
    127,663.14/191,439.30 = 43,400.70/x
  3. Step 3: Cross multiply
    127,663.14x = 191,439.30 × 43,400.70
  4. Step 4: Simplify right side
    127,663.14x = 8,308,599,627.51
  5. Step 5: Solve for x
    x = 8,308,599,627.51/127,663.14
  6. Step 6: Final answer
    x = 65,082.21

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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.