Home / 212,471.64-293,205.60-121,881.24

Finding the Fourth Proportional to 212,471.64, 293,205.60 and 121,881.24

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Solution

The fourth proportional to 212,471.64, 293,205.60 and 121,881.24 is: 168,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,471.64 : 293,205.60 = 121,881.24 : x
  2. Step 2: Convert to fraction form
    212,471.64/293,205.60 = 121,881.24/x
  3. Step 3: Cross multiply
    212,471.64x = 293,205.60 × 121,881.24
  4. Step 4: Simplify right side
    212,471.64x = 35,736,262,102.94
  5. Step 5: Solve for x
    x = 35,736,262,102.94/212,471.64
  6. Step 6: Final answer
    x = 168,193.09

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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.