Home / 212,834.57-319,345.95-111,608.43

Finding the Fourth Proportional to 212,834.57, 319,345.95 and 111,608.43

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Solution

The fourth proportional to 212,834.57, 319,345.95 and 111,608.43 is: 167,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,834.57 : 319,345.95 = 111,608.43 : x
  2. Step 2: Convert to fraction form
    212,834.57/319,345.95 = 111,608.43/x
  3. Step 3: Cross multiply
    212,834.57x = 319,345.95 × 111,608.43
  4. Step 4: Simplify right side
    212,834.57x = 35,641,700,106.36
  5. Step 5: Solve for x
    x = 35,641,700,106.36/212,834.57
  6. Step 6: Final answer
    x = 167,461.99

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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.