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Finding the Fourth Proportional to 158,592.21, 218,837.09 and 90,613.59

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Solution

The fourth proportional to 158,592.21, 218,837.09 and 90,613.59 is: 125,035.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,592.21 : 218,837.09 = 90,613.59 : x
  2. Step 2: Convert to fraction form
    158,592.21/218,837.09 = 90,613.59/x
  3. Step 3: Cross multiply
    158,592.21x = 218,837.09 × 90,613.59
  4. Step 4: Simplify right side
    158,592.21x = 19,829,613,896.99
  5. Step 5: Solve for x
    x = 19,829,613,896.99/158,592.21
  6. Step 6: Final answer
    x = 125,035.23

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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.