Home / 108,190.98-162,420.12-51,319.26

Finding the Fourth Proportional to 108,190.98, 162,420.12 and 51,319.26

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Solution

The fourth proportional to 108,190.98, 162,420.12 and 51,319.26 is: 77,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,190.98 : 162,420.12 = 51,319.26 : x
  2. Step 2: Convert to fraction form
    108,190.98/162,420.12 = 51,319.26/x
  3. Step 3: Cross multiply
    108,190.98x = 162,420.12 × 51,319.26
  4. Step 4: Simplify right side
    108,190.98x = 8,335,280,367.51
  5. Step 5: Solve for x
    x = 8,335,280,367.51/108,190.98
  6. Step 6: Final answer
    x = 77,042.29

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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.