Home / 212,270.66-292,975.38-121,687.45

Finding the Fourth Proportional to 212,270.66, 292,975.38 and 121,687.45

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Solution

The fourth proportional to 212,270.66, 292,975.38 and 121,687.45 is: 167,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,270.66 : 292,975.38 = 121,687.45 : x
  2. Step 2: Convert to fraction form
    212,270.66/292,975.38 = 121,687.45/x
  3. Step 3: Cross multiply
    212,270.66x = 292,975.38 × 121,687.45
  4. Step 4: Simplify right side
    212,270.66x = 35,651,426,172.54
  5. Step 5: Solve for x
    x = 35,651,426,172.54/212,270.66
  6. Step 6: Final answer
    x = 167,952.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.