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Finding the Fourth Proportional to 121,253.60, 181,880.40 and 119,285.30

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Solution

The fourth proportional to 121,253.60, 181,880.40 and 119,285.30 is: 178,927.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,253.60 : 181,880.40 = 119,285.30 : x
  2. Step 2: Convert to fraction form
    121,253.60/181,880.40 = 119,285.30/x
  3. Step 3: Cross multiply
    121,253.60x = 181,880.40 × 119,285.30
  4. Step 4: Simplify right side
    121,253.60x = 21,695,658,078.12
  5. Step 5: Solve for x
    x = 21,695,658,078.12/121,253.60
  6. Step 6: Final answer
    x = 178,927.95

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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.