Home / 212,455.44-318,614.04-70,273.98

Finding the Fourth Proportional to 212,455.44, 318,614.04 and 70,273.98

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Solution

The fourth proportional to 212,455.44, 318,614.04 and 70,273.98 is: 105,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,455.44 : 318,614.04 = 70,273.98 : x
  2. Step 2: Convert to fraction form
    212,455.44/318,614.04 = 70,273.98/x
  3. Step 3: Cross multiply
    212,455.44x = 318,614.04 × 70,273.98
  4. Step 4: Simplify right side
    212,455.44x = 22,390,276,674.68
  5. Step 5: Solve for x
    x = 22,390,276,674.68/212,455.44
  6. Step 6: Final answer
    x = 105,388.11

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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.