Home / 212,072.50-292,653.81-121,425.46

Finding the Fourth Proportional to 212,072.50, 292,653.81 and 121,425.46

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Solution

The fourth proportional to 212,072.50, 292,653.81 and 121,425.46 is: 167,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,072.50 : 292,653.81 = 121,425.46 : x
  2. Step 2: Convert to fraction form
    212,072.50/292,653.81 = 121,425.46/x
  3. Step 3: Cross multiply
    212,072.50x = 292,653.81 × 121,425.46
  4. Step 4: Simplify right side
    212,072.50x = 35,535,623,500.00
  5. Step 5: Solve for x
    x = 35,535,623,500.00/212,072.50
  6. Step 6: Final answer
    x = 167,563.56

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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.