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Finding the Fourth Proportional to 108,441.20, 162,661.80 and 107,404.40

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Solution

The fourth proportional to 108,441.20, 162,661.80 and 107,404.40 is: 161,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,441.20 : 162,661.80 = 107,404.40 : x
  2. Step 2: Convert to fraction form
    108,441.20/162,661.80 = 107,404.40/x
  3. Step 3: Cross multiply
    108,441.20x = 162,661.80 × 107,404.40
  4. Step 4: Simplify right side
    108,441.20x = 17,470,593,031.92
  5. Step 5: Solve for x
    x = 17,470,593,031.92/108,441.20
  6. Step 6: Final answer
    x = 161,106.60

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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.