Home / 117,154.36-161,673.78-63,439.38

Finding the Fourth Proportional to 117,154.36, 161,673.78 and 63,439.38

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Solution

The fourth proportional to 117,154.36, 161,673.78 and 63,439.38 is: 87,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,154.36 : 161,673.78 = 63,439.38 : x
  2. Step 2: Convert to fraction form
    117,154.36/161,673.78 = 63,439.38/x
  3. Step 3: Cross multiply
    117,154.36x = 161,673.78 × 63,439.38
  4. Step 4: Simplify right side
    117,154.36x = 10,256,484,365.46
  5. Step 5: Solve for x
    x = 10,256,484,365.46/117,154.36
  6. Step 6: Final answer
    x = 87,546.76

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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.