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Finding the Fourth Proportional to 102,161.25, 153,241.88 and 28,289.25

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Solution

The fourth proportional to 102,161.25, 153,241.88 and 28,289.25 is: 42,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,161.25 : 153,241.88 = 28,289.25 : x
  2. Step 2: Convert to fraction form
    102,161.25/153,241.88 = 28,289.25/x
  3. Step 3: Cross multiply
    102,161.25x = 153,241.88 × 28,289.25
  4. Step 4: Simplify right side
    102,161.25x = 4,335,097,712.34
  5. Step 5: Solve for x
    x = 4,335,097,712.34/102,161.25
  6. Step 6: Final answer
    x = 42,433.88

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1.5x scale

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.