Home / 108,290.40-162,589.20-66,818.40

Finding the Fourth Proportional to 108,290.40, 162,589.20 and 66,818.40

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Solution

The fourth proportional to 108,290.40, 162,589.20 and 66,818.40 is: 100,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,290.40 : 162,589.20 = 66,818.40 : x
  2. Step 2: Convert to fraction form
    108,290.40/162,589.20 = 66,818.40/x
  3. Step 3: Cross multiply
    108,290.40x = 162,589.20 × 66,818.40
  4. Step 4: Simplify right side
    108,290.40x = 10,863,950,201.28
  5. Step 5: Solve for x
    x = 10,863,950,201.28/108,290.40
  6. Step 6: Final answer
    x = 100,322.38

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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.