Home / 212,107.19-317,981.38-92,073.93

Finding the Fourth Proportional to 212,107.19, 317,981.38 and 92,073.93

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Solution

The fourth proportional to 212,107.19, 317,981.38 and 92,073.93 is: 138,033.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,107.19 : 317,981.38 = 92,073.93 : x
  2. Step 2: Convert to fraction form
    212,107.19/317,981.38 = 92,073.93/x
  3. Step 3: Cross multiply
    212,107.19x = 317,981.38 × 92,073.93
  4. Step 4: Simplify right side
    212,107.19x = 29,277,795,323.42
  5. Step 5: Solve for x
    x = 29,277,795,323.42/212,107.19
  6. Step 6: Final answer
    x = 138,033.02

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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.