Home / 137,304.92-189,471.62-76,865.36

Finding the Fourth Proportional to 137,304.92, 189,471.62 and 76,865.36

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Solution

The fourth proportional to 137,304.92, 189,471.62 and 76,865.36 is: 106,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,304.92 : 189,471.62 = 76,865.36 : x
  2. Step 2: Convert to fraction form
    137,304.92/189,471.62 = 76,865.36/x
  3. Step 3: Cross multiply
    137,304.92x = 189,471.62 × 76,865.36
  4. Step 4: Simplify right side
    137,304.92x = 14,563,804,281.08
  5. Step 5: Solve for x
    x = 14,563,804,281.08/137,304.92
  6. Step 6: Final answer
    x = 106,069.06

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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.