Home / 189,133.22-261,005.10-104,250.36

Finding the Fourth Proportional to 189,133.22, 261,005.10 and 104,250.36

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Solution

The fourth proportional to 189,133.22, 261,005.10 and 104,250.36 is: 143,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,133.22 : 261,005.10 = 104,250.36 : x
  2. Step 2: Convert to fraction form
    189,133.22/261,005.10 = 104,250.36/x
  3. Step 3: Cross multiply
    189,133.22x = 261,005.10 × 104,250.36
  4. Step 4: Simplify right side
    189,133.22x = 27,209,875,636.84
  5. Step 5: Solve for x
    x = 27,209,875,636.84/189,133.22
  6. Step 6: Final answer
    x = 143,866.19

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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.