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Finding the Fourth Proportional to 119,746.60, 179,619.90 and 30,999.40

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Solution

The fourth proportional to 119,746.60, 179,619.90 and 30,999.40 is: 46,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,746.60 : 179,619.90 = 30,999.40 : x
  2. Step 2: Convert to fraction form
    119,746.60/179,619.90 = 30,999.40/x
  3. Step 3: Cross multiply
    119,746.60x = 179,619.90 × 30,999.40
  4. Step 4: Simplify right side
    119,746.60x = 5,568,109,128.06
  5. Step 5: Solve for x
    x = 5,568,109,128.06/119,746.60
  6. Step 6: Final answer
    x = 46,499.10

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Similar ratio
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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.