Home / 212,072.63-292,660.83-121,429.98

Finding the Fourth Proportional to 212,072.63, 292,660.83 and 121,429.98

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Solution

The fourth proportional to 212,072.63, 292,660.83 and 121,429.98 is: 167,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,072.63 : 292,660.83 = 121,429.98 : x
  2. Step 2: Convert to fraction form
    212,072.63/292,660.83 = 121,429.98/x
  3. Step 3: Cross multiply
    212,072.63x = 292,660.83 × 121,429.98
  4. Step 4: Simplify right side
    212,072.63x = 35,537,798,733.68
  5. Step 5: Solve for x
    x = 35,537,798,733.68/212,072.63
  6. Step 6: Final answer
    x = 167,573.72

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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.