Home / 147,335.68-203,315.84-83,665.28

Finding the Fourth Proportional to 147,335.68, 203,315.84 and 83,665.28

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Solution

The fourth proportional to 147,335.68, 203,315.84 and 83,665.28 is: 115,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,335.68 : 203,315.84 = 83,665.28 : x
  2. Step 2: Convert to fraction form
    147,335.68/203,315.84 = 83,665.28/x
  3. Step 3: Cross multiply
    147,335.68x = 203,315.84 × 83,665.28
  4. Step 4: Simplify right side
    147,335.68x = 17,010,476,682.04
  5. Step 5: Solve for x
    x = 17,010,476,682.04/147,335.68
  6. Step 6: Final answer
    x = 115,453.89

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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.