Home / 144,608.09-216,629.64-99,621.50

Finding the Fourth Proportional to 144,608.09, 216,629.64 and 99,621.50

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Solution

The fourth proportional to 144,608.09, 216,629.64 and 99,621.50 is: 149,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,608.09 : 216,629.64 = 99,621.50 : x
  2. Step 2: Convert to fraction form
    144,608.09/216,629.64 = 99,621.50/x
  3. Step 3: Cross multiply
    144,608.09x = 216,629.64 × 99,621.50
  4. Step 4: Simplify right side
    144,608.09x = 21,580,968,100.00
  5. Step 5: Solve for x
    x = 21,580,968,100.00/144,608.09
  6. Step 6: Final answer
    x = 149,237.63

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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.