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Finding the Fourth Proportional to 165,459.68, 228,334.56 and 90,008

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Solution

The fourth proportional to 165,459.68, 228,334.56 and 90,008 is: 124,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,459.68 : 228,334.56 = 90,008 : x
  2. Step 2: Convert to fraction form
    165,459.68/228,334.56 = 90,008/x
  3. Step 3: Cross multiply
    165,459.68x = 228,334.56 × 90,008
  4. Step 4: Simplify right side
    165,459.68x = 20,551,937,076.48
  5. Step 5: Solve for x
    x = 20,551,937,076.48/165,459.68
  6. Step 6: Final answer
    x = 124,211.15

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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.