Home / 204,120.63-306,320.25-70,999.56

Finding the Fourth Proportional to 204,120.63, 306,320.25 and 70,999.56

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Solution

The fourth proportional to 204,120.63, 306,320.25 and 70,999.56 is: 106,547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,120.63 : 306,320.25 = 70,999.56 : x
  2. Step 2: Convert to fraction form
    204,120.63/306,320.25 = 70,999.56/x
  3. Step 3: Cross multiply
    204,120.63x = 306,320.25 × 70,999.56
  4. Step 4: Simplify right side
    204,120.63x = 21,748,602,969.09
  5. Step 5: Solve for x
    x = 21,748,602,969.09/204,120.63
  6. Step 6: Final answer
    x = 106,547.79

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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.