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Finding the Fourth Proportional to 152,896.60, 211,004.30 and 84,913.88

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Solution

The fourth proportional to 152,896.60, 211,004.30 and 84,913.88 is: 117,185.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,896.60 : 211,004.30 = 84,913.88 : x
  2. Step 2: Convert to fraction form
    152,896.60/211,004.30 = 84,913.88/x
  3. Step 3: Cross multiply
    152,896.60x = 211,004.30 × 84,913.88
  4. Step 4: Simplify right side
    152,896.60x = 17,917,193,809.68
  5. Step 5: Solve for x
    x = 17,917,193,809.68/152,896.60
  6. Step 6: Final answer
    x = 117,185.04

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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.