Home / 133,152.76-183,749.80-72,723.43

Finding the Fourth Proportional to 133,152.76, 183,749.80 and 72,723.43

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Solution

The fourth proportional to 133,152.76, 183,749.80 and 72,723.43 is: 100,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,152.76 : 183,749.80 = 72,723.43 : x
  2. Step 2: Convert to fraction form
    133,152.76/183,749.80 = 72,723.43/x
  3. Step 3: Cross multiply
    133,152.76x = 183,749.80 × 72,723.43
  4. Step 4: Simplify right side
    133,152.76x = 13,362,915,717.81
  5. Step 5: Solve for x
    x = 13,362,915,717.81/133,152.76
  6. Step 6: Final answer
    x = 100,357.78

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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.