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Finding the Fourth Proportional to 70,996.86, 106,486.98 and 18,402.18

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Solution

The fourth proportional to 70,996.86, 106,486.98 and 18,402.18 is: 27,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,996.86 : 106,486.98 = 18,402.18 : x
  2. Step 2: Convert to fraction form
    70,996.86/106,486.98 = 18,402.18/x
  3. Step 3: Cross multiply
    70,996.86x = 106,486.98 × 18,402.18
  4. Step 4: Simplify right side
    70,996.86x = 1,959,592,573.62
  5. Step 5: Solve for x
    x = 1,959,592,573.62/70,996.86
  6. Step 6: Final answer
    x = 27,601.12

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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.