Home / 213,281.05-319,981.36-93,348.45

Finding the Fourth Proportional to 213,281.05, 319,981.36 and 93,348.45

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Solution

The fourth proportional to 213,281.05, 319,981.36 and 93,348.45 is: 140,048.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,281.05 : 319,981.36 = 93,348.45 : x
  2. Step 2: Convert to fraction form
    213,281.05/319,981.36 = 93,348.45/x
  3. Step 3: Cross multiply
    213,281.05x = 319,981.36 × 93,348.45
  4. Step 4: Simplify right side
    213,281.05x = 29,869,763,351.54
  5. Step 5: Solve for x
    x = 29,869,763,351.54/213,281.05
  6. Step 6: Final answer
    x = 140,048.84

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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.