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Finding the Fourth Proportional to 113,148, 169,722 and 39,276

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Solution

The fourth proportional to 113,148, 169,722 and 39,276 is: 58,914

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,148 : 169,722 = 39,276 : x
  2. Step 2: Convert to fraction form
    113,148/169,722 = 39,276/x
  3. Step 3: Cross multiply
    113,148x = 169,722 × 39,276
  4. Step 4: Simplify right side
    113,148x = 6,666,001,272
  5. Step 5: Solve for x
    x = 6,666,001,272/113,148
  6. Step 6: Final answer
    x = 58,914

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