Home / 202,335.21-279,238.05-111,708.63

Finding the Fourth Proportional to 202,335.21, 279,238.05 and 111,708.63

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Solution

The fourth proportional to 202,335.21, 279,238.05 and 111,708.63 is: 154,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,335.21 : 279,238.05 = 111,708.63 : x
  2. Step 2: Convert to fraction form
    202,335.21/279,238.05 = 111,708.63/x
  3. Step 3: Cross multiply
    202,335.21x = 279,238.05 × 111,708.63
  4. Step 4: Simplify right side
    202,335.21x = 31,193,300,009.37
  5. Step 5: Solve for x
    x = 31,193,300,009.37/202,335.21
  6. Step 6: Final answer
    x = 154,166.44

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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.