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Finding the Fourth Proportional to 165,720, 228,695.16 and 94,101.52

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Solution

The fourth proportional to 165,720, 228,695.16 and 94,101.52 is: 129,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,720 : 228,695.16 = 94,101.52 : x
  2. Step 2: Convert to fraction form
    165,720/228,695.16 = 94,101.52/x
  3. Step 3: Cross multiply
    165,720x = 228,695.16 × 94,101.52
  4. Step 4: Simplify right side
    165,720x = 21,520,562,172.64
  5. Step 5: Solve for x
    x = 21,520,562,172.64/165,720
  6. Step 6: Final answer
    x = 129,860.98

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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.