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Finding the Fourth Proportional to 92,164.75, 138,246.99 and 28,990.42

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Solution

The fourth proportional to 92,164.75, 138,246.99 and 28,990.42 is: 43,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,164.75 : 138,246.99 = 28,990.42 : x
  2. Step 2: Convert to fraction form
    92,164.75/138,246.99 = 28,990.42/x
  3. Step 3: Cross multiply
    92,164.75x = 138,246.99 × 28,990.42
  4. Step 4: Simplify right side
    92,164.75x = 4,007,838,303.84
  5. Step 5: Solve for x
    x = 4,007,838,303.84/92,164.75
  6. Step 6: Final answer
    x = 43,485.59

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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.