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Finding the Fourth Proportional to 133,004.68, 183,550.88 and 72,578.63

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Solution

The fourth proportional to 133,004.68, 183,550.88 and 72,578.63 is: 100,160.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,004.68 : 183,550.88 = 72,578.63 : x
  2. Step 2: Convert to fraction form
    133,004.68/183,550.88 = 72,578.63/x
  3. Step 3: Cross multiply
    133,004.68x = 183,550.88 × 72,578.63
  4. Step 4: Simplify right side
    133,004.68x = 13,321,871,405.69
  5. Step 5: Solve for x
    x = 13,321,871,405.69/133,004.68
  6. Step 6: Final answer
    x = 100,160.92

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1.5x scale

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.