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Finding the Fourth Proportional to 181,483.54, 272,095.64 and 85,366.95

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Solution

The fourth proportional to 181,483.54, 272,095.64 and 85,366.95 is: 127,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,483.54 : 272,095.64 = 85,366.95 : x
  2. Step 2: Convert to fraction form
    181,483.54/272,095.64 = 85,366.95/x
  3. Step 3: Cross multiply
    181,483.54x = 272,095.64 × 85,366.95
  4. Step 4: Simplify right side
    181,483.54x = 23,227,973,768.03
  5. Step 5: Solve for x
    x = 23,227,973,768.03/181,483.54
  6. Step 6: Final answer
    x = 127,989.43

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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.