Home / 108,410.20-162,615.30-71,205.40

Finding the Fourth Proportional to 108,410.20, 162,615.30 and 71,205.40

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Solution

The fourth proportional to 108,410.20, 162,615.30 and 71,205.40 is: 106,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,410.20 : 162,615.30 = 71,205.40 : x
  2. Step 2: Convert to fraction form
    108,410.20/162,615.30 = 71,205.40/x
  3. Step 3: Cross multiply
    108,410.20x = 162,615.30 × 71,205.40
  4. Step 4: Simplify right side
    108,410.20x = 11,579,087,482.62
  5. Step 5: Solve for x
    x = 11,579,087,482.62/108,410.20
  6. Step 6: Final answer
    x = 106,808.10

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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.