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Finding the Fourth Proportional to 92,146.09, 138,219.02 and 28,971.73

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Solution

The fourth proportional to 92,146.09, 138,219.02 and 28,971.73 is: 43,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,146.09 : 138,219.02 = 28,971.73 : x
  2. Step 2: Convert to fraction form
    92,146.09/138,219.02 = 28,971.73/x
  3. Step 3: Cross multiply
    92,146.09x = 138,219.02 × 28,971.73
  4. Step 4: Simplify right side
    92,146.09x = 4,004,443,292.35
  5. Step 5: Solve for x
    x = 4,004,443,292.35/92,146.09
  6. Step 6: Final answer
    x = 43,457.55

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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.