Home / 194,012.10-290,667.92-81,490.95

Finding the Fourth Proportional to 194,012.10, 290,667.92 and 81,490.95

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Solution

The fourth proportional to 194,012.10, 290,667.92 and 81,490.95 is: 122,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,012.10 : 290,667.92 = 81,490.95 : x
  2. Step 2: Convert to fraction form
    194,012.10/290,667.92 = 81,490.95/x
  3. Step 3: Cross multiply
    194,012.10x = 290,667.92 × 81,490.95
  4. Step 4: Simplify right side
    194,012.10x = 23,686,804,527.87
  5. Step 5: Solve for x
    x = 23,686,804,527.87/194,012.10
  6. Step 6: Final answer
    x = 122,089.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.