Home / 168,021.60-252,032.40-162,319.20

Finding the Fourth Proportional to 168,021.60, 252,032.40 and 162,319.20

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Solution

The fourth proportional to 168,021.60, 252,032.40 and 162,319.20 is: 243,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021.60 : 252,032.40 = 162,319.20 : x
  2. Step 2: Convert to fraction form
    168,021.60/252,032.40 = 162,319.20/x
  3. Step 3: Cross multiply
    168,021.60x = 252,032.40 × 162,319.20
  4. Step 4: Simplify right side
    168,021.60x = 40,909,697,542.08
  5. Step 5: Solve for x
    x = 40,909,697,542.08/168,021.60
  6. Step 6: Final answer
    x = 243,478.80

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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.