Home / 121,285.20-181,927.80-106,522.95

Finding the Fourth Proportional to 121,285.20, 181,927.80 and 106,522.95

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Solution

The fourth proportional to 121,285.20, 181,927.80 and 106,522.95 is: 159,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285.20 : 181,927.80 = 106,522.95 : x
  2. Step 2: Convert to fraction form
    121,285.20/181,927.80 = 106,522.95/x
  3. Step 3: Cross multiply
    121,285.20x = 181,927.80 × 106,522.95
  4. Step 4: Simplify right side
    121,285.20x = 19,379,485,943.01
  5. Step 5: Solve for x
    x = 19,379,485,943.01/121,285.20
  6. Step 6: Final answer
    x = 159,784.43

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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.