Home / 204,859.17-307,285.08-78,465.15

Finding the Fourth Proportional to 204,859.17, 307,285.08 and 78,465.15

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Solution

The fourth proportional to 204,859.17, 307,285.08 and 78,465.15 is: 117,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,859.17 : 307,285.08 = 78,465.15 : x
  2. Step 2: Convert to fraction form
    204,859.17/307,285.08 = 78,465.15/x
  3. Step 3: Cross multiply
    204,859.17x = 307,285.08 × 78,465.15
  4. Step 4: Simplify right side
    204,859.17x = 24,111,169,894.96
  5. Step 5: Solve for x
    x = 24,111,169,894.96/204,859.17
  6. Step 6: Final answer
    x = 117,696.32

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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.