Home / 212,072.32-292,660.41-121,429.66

Finding the Fourth Proportional to 212,072.32, 292,660.41 and 121,429.66

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Solution

The fourth proportional to 212,072.32, 292,660.41 and 121,429.66 is: 167,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,072.32 : 292,660.41 = 121,429.66 : x
  2. Step 2: Convert to fraction form
    212,072.32/292,660.41 = 121,429.66/x
  3. Step 3: Cross multiply
    212,072.32x = 292,660.41 × 121,429.66
  4. Step 4: Simplify right side
    212,072.32x = 35,537,654,081.76
  5. Step 5: Solve for x
    x = 35,537,654,081.76/212,072.32
  6. Step 6: Final answer
    x = 167,573.28

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1.5x scale

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.