Home / 107,946.28-161,938.86-51,738.76

Finding the Fourth Proportional to 107,946.28, 161,938.86 and 51,738.76

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Solution

The fourth proportional to 107,946.28, 161,938.86 and 51,738.76 is: 77,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,946.28 : 161,938.86 = 51,738.76 : x
  2. Step 2: Convert to fraction form
    107,946.28/161,938.86 = 51,738.76/x
  3. Step 3: Cross multiply
    107,946.28x = 161,938.86 × 51,738.76
  4. Step 4: Simplify right side
    107,946.28x = 8,378,515,812.21
  5. Step 5: Solve for x
    x = 8,378,515,812.21/107,946.28
  6. Step 6: Final answer
    x = 77,617.46

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1.5x scale

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.