Home / 108,971.92-163,415.22-42,403.24

Finding the Fourth Proportional to 108,971.92, 163,415.22 and 42,403.24

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Solution

The fourth proportional to 108,971.92, 163,415.22 and 42,403.24 is: 63,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,971.92 : 163,415.22 = 42,403.24 : x
  2. Step 2: Convert to fraction form
    108,971.92/163,415.22 = 42,403.24/x
  3. Step 3: Cross multiply
    108,971.92x = 163,415.22 × 42,403.24
  4. Step 4: Simplify right side
    108,971.92x = 6,929,334,793.31
  5. Step 5: Solve for x
    x = 6,929,334,793.31/108,971.92
  6. Step 6: Final answer
    x = 63,588.26

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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.