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Finding the Fourth Proportional to 158,168.49, 218,277.75 and 86,548.62

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Solution

The fourth proportional to 158,168.49, 218,277.75 and 86,548.62 is: 119,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,168.49 : 218,277.75 = 86,548.62 : x
  2. Step 2: Convert to fraction form
    158,168.49/218,277.75 = 86,548.62/x
  3. Step 3: Cross multiply
    158,168.49x = 218,277.75 × 86,548.62
  4. Step 4: Simplify right side
    158,168.49x = 18,891,638,039.21
  5. Step 5: Solve for x
    x = 18,891,638,039.21/158,168.49
  6. Step 6: Final answer
    x = 119,439.96

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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.