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Finding the Fourth Proportional to 133,043.51, 183,596.51 and 72,614.90

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Solution

The fourth proportional to 133,043.51, 183,596.51 and 72,614.90 is: 100,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,043.51 : 183,596.51 = 72,614.90 : x
  2. Step 2: Convert to fraction form
    133,043.51/183,596.51 = 72,614.90/x
  3. Step 3: Cross multiply
    133,043.51x = 183,596.51 × 72,614.90
  4. Step 4: Simplify right side
    133,043.51x = 13,331,841,850.92
  5. Step 5: Solve for x
    x = 13,331,841,850.92/133,043.51
  6. Step 6: Final answer
    x = 100,206.63

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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.