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Finding the Fourth Proportional to 165,690.88, 248,304.64 and 89,625.21

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Solution

The fourth proportional to 165,690.88, 248,304.64 and 89,625.21 is: 134,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,690.88 : 248,304.64 = 89,625.21 : x
  2. Step 2: Convert to fraction form
    165,690.88/248,304.64 = 89,625.21/x
  3. Step 3: Cross multiply
    165,690.88x = 248,304.64 × 89,625.21
  4. Step 4: Simplify right side
    165,690.88x = 22,254,355,738.94
  5. Step 5: Solve for x
    x = 22,254,355,738.94/165,690.88
  6. Step 6: Final answer
    x = 134,312.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.