Home / 142,905.81-197,226.27-82,492.66

Finding the Fourth Proportional to 142,905.81, 197,226.27 and 82,492.66

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Solution

The fourth proportional to 142,905.81, 197,226.27 and 82,492.66 is: 113,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,905.81 : 197,226.27 = 82,492.66 : x
  2. Step 2: Convert to fraction form
    142,905.81/197,226.27 = 82,492.66/x
  3. Step 3: Cross multiply
    142,905.81x = 197,226.27 × 82,492.66
  4. Step 4: Simplify right side
    142,905.81x = 16,269,719,634.18
  5. Step 5: Solve for x
    x = 16,269,719,634.18/142,905.81
  6. Step 6: Final answer
    x = 113,849.25

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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.