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Finding the Fourth Proportional to 119,749.79, 179,638.56 and 39,794.90

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Solution

The fourth proportional to 119,749.79, 179,638.56 and 39,794.90 is: 59,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,749.79 : 179,638.56 = 39,794.90 : x
  2. Step 2: Convert to fraction form
    119,749.79/179,638.56 = 39,794.90/x
  3. Step 3: Cross multiply
    119,749.79x = 179,638.56 × 39,794.90
  4. Step 4: Simplify right side
    119,749.79x = 7,148,697,633.15
  5. Step 5: Solve for x
    x = 7,148,697,633.15/119,749.79
  6. Step 6: Final answer
    x = 59,696.95

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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.