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Finding the Fourth Proportional to 153,305, 211,529.04 and 89,630.48

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Solution

The fourth proportional to 153,305, 211,529.04 and 89,630.48 is: 123,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,305 : 211,529.04 = 89,630.48 : x
  2. Step 2: Convert to fraction form
    153,305/211,529.04 = 89,630.48/x
  3. Step 3: Cross multiply
    153,305x = 211,529.04 × 89,630.48
  4. Step 4: Simplify right side
    153,305x = 18,959,449,389.14
  5. Step 5: Solve for x
    x = 18,959,449,389.14/153,305
  6. Step 6: Final answer
    x = 123,671.44

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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.