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Finding the Fourth Proportional to 168,051.60, 252,077.40 and 79,478.10

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Solution

The fourth proportional to 168,051.60, 252,077.40 and 79,478.10 is: 119,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,051.60 : 252,077.40 = 79,478.10 : x
  2. Step 2: Convert to fraction form
    168,051.60/252,077.40 = 79,478.10/x
  3. Step 3: Cross multiply
    168,051.60x = 252,077.40 × 79,478.10
  4. Step 4: Simplify right side
    168,051.60x = 20,034,632,804.94
  5. Step 5: Solve for x
    x = 20,034,632,804.94/168,051.60
  6. Step 6: Final answer
    x = 119,217.15

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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.