Home / 135,804.51-187,407.39-75,371.64

Finding the Fourth Proportional to 135,804.51, 187,407.39 and 75,371.64

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Solution

The fourth proportional to 135,804.51, 187,407.39 and 75,371.64 is: 104,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,804.51 : 187,407.39 = 75,371.64 : x
  2. Step 2: Convert to fraction form
    135,804.51/187,407.39 = 75,371.64/x
  3. Step 3: Cross multiply
    135,804.51x = 187,407.39 × 75,371.64
  4. Step 4: Simplify right side
    135,804.51x = 14,125,202,332.42
  5. Step 5: Solve for x
    x = 14,125,202,332.42/135,804.51
  6. Step 6: Final answer
    x = 104,011.29

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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.