Home / 101,266.10-151,906.35-31,145.30

Finding the Fourth Proportional to 101,266.10, 151,906.35 and 31,145.30

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Solution

The fourth proportional to 101,266.10, 151,906.35 and 31,145.30 is: 46,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.10 : 151,906.35 = 31,145.30 : x
  2. Step 2: Convert to fraction form
    101,266.10/151,906.35 = 31,145.30/x
  3. Step 3: Cross multiply
    101,266.10x = 151,906.35 × 31,145.30
  4. Step 4: Simplify right side
    101,266.10x = 4,731,168,842.66
  5. Step 5: Solve for x
    x = 4,731,168,842.66/101,266.10
  6. Step 6: Final answer
    x = 46,720.16

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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.