Home / 212,731.68-318,796.68-118,003.56

Finding the Fourth Proportional to 212,731.68, 318,796.68 and 118,003.56

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Solution

The fourth proportional to 212,731.68, 318,796.68 and 118,003.56 is: 176,838.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,731.68 : 318,796.68 = 118,003.56 : x
  2. Step 2: Convert to fraction form
    212,731.68/318,796.68 = 118,003.56/x
  3. Step 3: Cross multiply
    212,731.68x = 318,796.68 × 118,003.56
  4. Step 4: Simplify right side
    212,731.68x = 37,619,143,156.18
  5. Step 5: Solve for x
    x = 37,619,143,156.18/212,731.68
  6. Step 6: Final answer
    x = 176,838.46

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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.