Home / 108,331.40-162,180.30-77,227.40

Finding the Fourth Proportional to 108,331.40, 162,180.30 and 77,227.40

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Solution

The fourth proportional to 108,331.40, 162,180.30 and 77,227.40 is: 115,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,331.40 : 162,180.30 = 77,227.40 : x
  2. Step 2: Convert to fraction form
    108,331.40/162,180.30 = 77,227.40/x
  3. Step 3: Cross multiply
    108,331.40x = 162,180.30 × 77,227.40
  4. Step 4: Simplify right side
    108,331.40x = 12,524,762,900.22
  5. Step 5: Solve for x
    x = 12,524,762,900.22/108,331.40
  6. Step 6: Final answer
    x = 115,615.26

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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.