Home / 147,371.51-203,361.75-83,697

Finding the Fourth Proportional to 147,371.51, 203,361.75 and 83,697

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Solution

The fourth proportional to 147,371.51, 203,361.75 and 83,697 is: 115,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,371.51 : 203,361.75 = 83,697 : x
  2. Step 2: Convert to fraction form
    147,371.51/203,361.75 = 83,697/x
  3. Step 3: Cross multiply
    147,371.51x = 203,361.75 × 83,697
  4. Step 4: Simplify right side
    147,371.51x = 17,020,768,389.75
  5. Step 5: Solve for x
    x = 17,020,768,389.75/147,371.51
  6. Step 6: Final answer
    x = 115,495.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.