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Finding the Fourth Proportional to 119,999.40, 179,999.10 and 82,674.60

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Solution

The fourth proportional to 119,999.40, 179,999.10 and 82,674.60 is: 124,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,999.40 : 179,999.10 = 82,674.60 : x
  2. Step 2: Convert to fraction form
    119,999.40/179,999.10 = 82,674.60/x
  3. Step 3: Cross multiply
    119,999.40x = 179,999.10 × 82,674.60
  4. Step 4: Simplify right side
    119,999.40x = 14,881,353,592.86
  5. Step 5: Solve for x
    x = 14,881,353,592.86/119,999.40
  6. Step 6: Final answer
    x = 124,011.90

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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.