Home / 133,178.27-183,782.99-72,749.18

Finding the Fourth Proportional to 133,178.27, 183,782.99 and 72,749.18

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Solution

The fourth proportional to 133,178.27, 183,782.99 and 72,749.18 is: 100,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,178.27 : 183,782.99 = 72,749.18 : x
  2. Step 2: Convert to fraction form
    133,178.27/183,782.99 = 72,749.18/x
  3. Step 3: Cross multiply
    133,178.27x = 183,782.99 × 72,749.18
  4. Step 4: Simplify right side
    133,178.27x = 13,370,062,873.68
  5. Step 5: Solve for x
    x = 13,370,062,873.68/133,178.27
  6. Step 6: Final answer
    x = 100,392.22

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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.