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Finding the Fourth Proportional to 133,202.88, 183,839.22 and 79,490.16

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Solution

The fourth proportional to 133,202.88, 183,839.22 and 79,490.16 is: 109,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,202.88 : 183,839.22 = 79,490.16 : x
  2. Step 2: Convert to fraction form
    133,202.88/183,839.22 = 79,490.16/x
  3. Step 3: Cross multiply
    133,202.88x = 183,839.22 × 79,490.16
  4. Step 4: Simplify right side
    133,202.88x = 14,613,409,012.08
  5. Step 5: Solve for x
    x = 14,613,409,012.08/133,202.88
  6. Step 6: Final answer
    x = 109,707.91

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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.