Home / 189,621.78-261,673.06-104,737.02

Finding the Fourth Proportional to 189,621.78, 261,673.06 and 104,737.02

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Solution

The fourth proportional to 189,621.78, 261,673.06 and 104,737.02 is: 144,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,621.78 : 261,673.06 = 104,737.02 : x
  2. Step 2: Convert to fraction form
    189,621.78/261,673.06 = 104,737.02/x
  3. Step 3: Cross multiply
    189,621.78x = 261,673.06 × 104,737.02
  4. Step 4: Simplify right side
    189,621.78x = 27,406,856,518.68
  5. Step 5: Solve for x
    x = 27,406,856,518.68/189,621.78
  6. Step 6: Final answer
    x = 144,534.33

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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.