Home / 213,036.57-319,231.55-156,607.88

Finding the Fourth Proportional to 213,036.57, 319,231.55 and 156,607.88

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Solution

The fourth proportional to 213,036.57, 319,231.55 and 156,607.88 is: 234,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,036.57 : 319,231.55 = 156,607.88 : x
  2. Step 2: Convert to fraction form
    213,036.57/319,231.55 = 156,607.88/x
  3. Step 3: Cross multiply
    213,036.57x = 319,231.55 × 156,607.88
  4. Step 4: Simplify right side
    213,036.57x = 49,994,175,069.98
  5. Step 5: Solve for x
    x = 49,994,175,069.98/213,036.57
  6. Step 6: Final answer
    x = 234,674.15

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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.