Home / 168,138.96-252,038.28-109,012.20

Finding the Fourth Proportional to 168,138.96, 252,038.28 and 109,012.20

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Solution

The fourth proportional to 168,138.96, 252,038.28 and 109,012.20 is: 163,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,138.96 : 252,038.28 = 109,012.20 : x
  2. Step 2: Convert to fraction form
    168,138.96/252,038.28 = 109,012.20/x
  3. Step 3: Cross multiply
    168,138.96x = 252,038.28 × 109,012.20
  4. Step 4: Simplify right side
    168,138.96x = 27,475,247,387.02
  5. Step 5: Solve for x
    x = 27,475,247,387.02/168,138.96
  6. Step 6: Final answer
    x = 163,407.98

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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.