Home / 108,734.58-163,143.36-42,221.37

Finding the Fourth Proportional to 108,734.58, 163,143.36 and 42,221.37

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Solution

The fourth proportional to 108,734.58, 163,143.36 and 42,221.37 is: 63,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,734.58 : 163,143.36 = 42,221.37 : x
  2. Step 2: Convert to fraction form
    108,734.58/163,143.36 = 42,221.37/x
  3. Step 3: Cross multiply
    108,734.58x = 163,143.36 × 42,221.37
  4. Step 4: Simplify right side
    108,734.58x = 6,888,136,165.60
  5. Step 5: Solve for x
    x = 6,888,136,165.60/108,734.58
  6. Step 6: Final answer
    x = 63,348.17

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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.