Home / 168,030.40-252,052.62-78,157.42

Finding the Fourth Proportional to 168,030.40, 252,052.62 and 78,157.42

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Solution

The fourth proportional to 168,030.40, 252,052.62 and 78,157.42 is: 117,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,030.40 : 252,052.62 = 78,157.42 : x
  2. Step 2: Convert to fraction form
    168,030.40/252,052.62 = 78,157.42/x
  3. Step 3: Cross multiply
    168,030.40x = 252,052.62 × 78,157.42
  4. Step 4: Simplify right side
    168,030.40x = 19,699,782,483.44
  5. Step 5: Solve for x
    x = 19,699,782,483.44/168,030.40
  6. Step 6: Final answer
    x = 117,239.40

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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.