Home / 108,840.24-163,245.78-42,273.90

Finding the Fourth Proportional to 108,840.24, 163,245.78 and 42,273.90

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Solution

The fourth proportional to 108,840.24, 163,245.78 and 42,273.90 is: 63,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,840.24 : 163,245.78 = 42,273.90 : x
  2. Step 2: Convert to fraction form
    108,840.24/163,245.78 = 42,273.90/x
  3. Step 3: Cross multiply
    108,840.24x = 163,245.78 × 42,273.90
  4. Step 4: Simplify right side
    108,840.24x = 6,901,035,779.14
  5. Step 5: Solve for x
    x = 6,901,035,779.14/108,840.24
  6. Step 6: Final answer
    x = 63,405.19

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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.