Home / 137,347.19-189,541.25-79,171.82

Finding the Fourth Proportional to 137,347.19, 189,541.25 and 79,171.82

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Solution

The fourth proportional to 137,347.19, 189,541.25 and 79,171.82 is: 109,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,347.19 : 189,541.25 = 79,171.82 : x
  2. Step 2: Convert to fraction form
    137,347.19/189,541.25 = 79,171.82/x
  3. Step 3: Cross multiply
    137,347.19x = 189,541.25 × 79,171.82
  4. Step 4: Simplify right side
    137,347.19x = 15,006,326,058.87
  5. Step 5: Solve for x
    x = 15,006,326,058.87/137,347.19
  6. Step 6: Final answer
    x = 109,258.34

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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.