Home / 212,871.09-293,804.64-122,289.24

Finding the Fourth Proportional to 212,871.09, 293,804.64 and 122,289.24

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Solution

The fourth proportional to 212,871.09, 293,804.64 and 122,289.24 is: 168,783.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,871.09 : 293,804.64 = 122,289.24 : x
  2. Step 2: Convert to fraction form
    212,871.09/293,804.64 = 122,289.24/x
  3. Step 3: Cross multiply
    212,871.09x = 293,804.64 × 122,289.24
  4. Step 4: Simplify right side
    212,871.09x = 35,929,146,134.07
  5. Step 5: Solve for x
    x = 35,929,146,134.07/212,871.09
  6. Step 6: Final answer
    x = 168,783.59

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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.