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Finding the Fourth Proportional to 133,228.95, 183,850.47 and 72,801.69

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Solution

The fourth proportional to 133,228.95, 183,850.47 and 72,801.69 is: 100,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,228.95 : 183,850.47 = 72,801.69 : x
  2. Step 2: Convert to fraction form
    133,228.95/183,850.47 = 72,801.69/x
  3. Step 3: Cross multiply
    133,228.95x = 183,850.47 × 72,801.69
  4. Step 4: Simplify right side
    133,228.95x = 13,384,624,923.29
  5. Step 5: Solve for x
    x = 13,384,624,923.29/133,228.95
  6. Step 6: Final answer
    x = 100,463.34

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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.