Home / 203,664.07-305,405.89-108,871.29

Finding the Fourth Proportional to 203,664.07, 305,405.89 and 108,871.29

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Solution

The fourth proportional to 203,664.07, 305,405.89 and 108,871.29 is: 163,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,664.07 : 305,405.89 = 108,871.29 : x
  2. Step 2: Convert to fraction form
    203,664.07/305,405.89 = 108,871.29/x
  3. Step 3: Cross multiply
    203,664.07x = 305,405.89 × 108,871.29
  4. Step 4: Simplify right side
    203,664.07x = 33,249,931,146.51
  5. Step 5: Solve for x
    x = 33,249,931,146.51/203,664.07
  6. Step 6: Final answer
    x = 163,258.70

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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.