Home / 138,956.21-208,434.47-33,775.18

Finding the Fourth Proportional to 138,956.21, 208,434.47 and 33,775.18

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Solution

The fourth proportional to 138,956.21, 208,434.47 and 33,775.18 is: 50,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,956.21 : 208,434.47 = 33,775.18 : x
  2. Step 2: Convert to fraction form
    138,956.21/208,434.47 = 33,775.18/x
  3. Step 3: Cross multiply
    138,956.21x = 208,434.47 × 33,775.18
  4. Step 4: Simplify right side
    138,956.21x = 7,039,911,052.49
  5. Step 5: Solve for x
    x = 7,039,911,052.49/138,956.21
  6. Step 6: Final answer
    x = 50,662.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.