Home / 212,696.07-319,050.29-79,550.92

Finding the Fourth Proportional to 212,696.07, 319,050.29 and 79,550.92

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Solution

The fourth proportional to 212,696.07, 319,050.29 and 79,550.92 is: 119,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,696.07 : 319,050.29 = 79,550.92 : x
  2. Step 2: Convert to fraction form
    212,696.07/319,050.29 = 79,550.92/x
  3. Step 3: Cross multiply
    212,696.07x = 319,050.29 × 79,550.92
  4. Step 4: Simplify right side
    212,696.07x = 25,380,744,095.77
  5. Step 5: Solve for x
    x = 25,380,744,095.77/212,696.07
  6. Step 6: Final answer
    x = 119,328.69

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1.5x scale

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.