Home / 189,239.34-261,138.36-108,610.11

Finding the Fourth Proportional to 189,239.34, 261,138.36 and 108,610.11

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Solution

The fourth proportional to 189,239.34, 261,138.36 and 108,610.11 is: 149,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,239.34 : 261,138.36 = 108,610.11 : x
  2. Step 2: Convert to fraction form
    189,239.34/261,138.36 = 108,610.11/x
  3. Step 3: Cross multiply
    189,239.34x = 261,138.36 × 108,610.11
  4. Step 4: Simplify right side
    189,239.34x = 28,362,266,004.82
  5. Step 5: Solve for x
    x = 28,362,266,004.82/189,239.34
  6. Step 6: Final answer
    x = 149,875.11

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1.5x scale

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.