Home / 189,210.54-261,097.16-104,325.78

Finding the Fourth Proportional to 189,210.54, 261,097.16 and 104,325.78

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Solution

The fourth proportional to 189,210.54, 261,097.16 and 104,325.78 is: 143,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,210.54 : 261,097.16 = 104,325.78 : x
  2. Step 2: Convert to fraction form
    189,210.54/261,097.16 = 104,325.78/x
  3. Step 3: Cross multiply
    189,210.54x = 261,097.16 × 104,325.78
  4. Step 4: Simplify right side
    189,210.54x = 27,239,164,872.78
  5. Step 5: Solve for x
    x = 27,239,164,872.78/189,210.54
  6. Step 6: Final answer
    x = 143,962.20

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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.