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Finding the Fourth Proportional to 108,401.80, 162,408.30 and 101,403.40

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Solution

The fourth proportional to 108,401.80, 162,408.30 and 101,403.40 is: 151,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,401.80 : 162,408.30 = 101,403.40 : x
  2. Step 2: Convert to fraction form
    108,401.80/162,408.30 = 101,403.40/x
  3. Step 3: Cross multiply
    108,401.80x = 162,408.30 × 101,403.40
  4. Step 4: Simplify right side
    108,401.80x = 16,468,753,808.22
  5. Step 5: Solve for x
    x = 16,468,753,808.22/108,401.80
  6. Step 6: Final answer
    x = 151,923.25

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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.