Home / 143,266.08-197,656.68-81,967.50

Finding the Fourth Proportional to 143,266.08, 197,656.68 and 81,967.50

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Solution

The fourth proportional to 143,266.08, 197,656.68 and 81,967.50 is: 113,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,266.08 : 197,656.68 = 81,967.50 : x
  2. Step 2: Convert to fraction form
    143,266.08/197,656.68 = 81,967.50/x
  3. Step 3: Cross multiply
    143,266.08x = 197,656.68 × 81,967.50
  4. Step 4: Simplify right side
    143,266.08x = 16,201,423,917.90
  5. Step 5: Solve for x
    x = 16,201,423,917.90/143,266.08
  6. Step 6: Final answer
    x = 113,086.25

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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.