Home / 204,980.16-307,529.73-85,015.11

Finding the Fourth Proportional to 204,980.16, 307,529.73 and 85,015.11

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Solution

The fourth proportional to 204,980.16, 307,529.73 and 85,015.11 is: 127,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,980.16 : 307,529.73 = 85,015.11 : x
  2. Step 2: Convert to fraction form
    204,980.16/307,529.73 = 85,015.11/x
  3. Step 3: Cross multiply
    204,980.16x = 307,529.73 × 85,015.11
  4. Step 4: Simplify right side
    204,980.16x = 26,144,673,824.22
  5. Step 5: Solve for x
    x = 26,144,673,824.22/204,980.16
  6. Step 6: Final answer
    x = 127,547.34

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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.