Home / 101,201.18-151,802.01-31,080.38

Finding the Fourth Proportional to 101,201.18, 151,802.01 and 31,080.38

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Solution

The fourth proportional to 101,201.18, 151,802.01 and 31,080.38 is: 46,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,201.18 : 151,802.01 = 31,080.38 : x
  2. Step 2: Convert to fraction form
    101,201.18/151,802.01 = 31,080.38/x
  3. Step 3: Cross multiply
    101,201.18x = 151,802.01 × 31,080.38
  4. Step 4: Simplify right side
    101,201.18x = 4,718,064,155.56
  5. Step 5: Solve for x
    x = 4,718,064,155.56/101,201.18
  6. Step 6: Final answer
    x = 46,620.64

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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.