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Finding the Fourth Proportional to 189,368.46, 261,423.16 and 117,771.54

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Solution

The fourth proportional to 189,368.46, 261,423.16 and 117,771.54 is: 162,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,368.46 : 261,423.16 = 117,771.54 : x
  2. Step 2: Convert to fraction form
    189,368.46/261,423.16 = 117,771.54/x
  3. Step 3: Cross multiply
    189,368.46x = 261,423.16 × 117,771.54
  4. Step 4: Simplify right side
    189,368.46x = 30,788,208,144.87
  5. Step 5: Solve for x
    x = 30,788,208,144.87/189,368.46
  6. Step 6: Final answer
    x = 162,583.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.