Home / 147,313.26-221,066.73-80,800

Finding the Fourth Proportional to 147,313.26, 221,066.73 and 80,800

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Solution

The fourth proportional to 147,313.26, 221,066.73 and 80,800 is: 121,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,313.26 : 221,066.73 = 80,800 : x
  2. Step 2: Convert to fraction form
    147,313.26/221,066.73 = 80,800/x
  3. Step 3: Cross multiply
    147,313.26x = 221,066.73 × 80,800
  4. Step 4: Simplify right side
    147,313.26x = 17,862,191,784
  5. Step 5: Solve for x
    x = 17,862,191,784/147,313.26
  6. Step 6: Final answer
    x = 121,253.12

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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.