Home / 137,574.28-189,893.06-89,835.08

Finding the Fourth Proportional to 137,574.28, 189,893.06 and 89,835.08

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Solution

The fourth proportional to 137,574.28, 189,893.06 and 89,835.08 is: 123,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,574.28 : 189,893.06 = 89,835.08 : x
  2. Step 2: Convert to fraction form
    137,574.28/189,893.06 = 89,835.08/x
  3. Step 3: Cross multiply
    137,574.28x = 189,893.06 × 89,835.08
  4. Step 4: Simplify right side
    137,574.28x = 17,059,058,236.54
  5. Step 5: Solve for x
    x = 17,059,058,236.54/137,574.28
  6. Step 6: Final answer
    x = 123,998.89

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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.