Home / 142,665.28-196,844.26-84,492.64

Finding the Fourth Proportional to 142,665.28, 196,844.26 and 84,492.64

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Solution

The fourth proportional to 142,665.28, 196,844.26 and 84,492.64 is: 116,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,665.28 : 196,844.26 = 84,492.64 : x
  2. Step 2: Convert to fraction form
    142,665.28/196,844.26 = 84,492.64/x
  3. Step 3: Cross multiply
    142,665.28x = 196,844.26 × 84,492.64
  4. Step 4: Simplify right side
    142,665.28x = 16,631,891,196.25
  5. Step 5: Solve for x
    x = 16,631,891,196.25/142,665.28
  6. Step 6: Final answer
    x = 116,579.81

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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.