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Finding the Fourth Proportional to 134,933, 186,210.50 and 74,503.48

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Solution

The fourth proportional to 134,933, 186,210.50 and 74,503.48 is: 102,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,933 : 186,210.50 = 74,503.48 : x
  2. Step 2: Convert to fraction form
    134,933/186,210.50 = 74,503.48/x
  3. Step 3: Cross multiply
    134,933x = 186,210.50 × 74,503.48
  4. Step 4: Simplify right side
    134,933x = 13,873,330,262.54
  5. Step 5: Solve for x
    x = 13,873,330,262.54/134,933
  6. Step 6: Final answer
    x = 102,816.44

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Why These Related Problems?

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