Home / 202,262.31-279,004.10-129,639.33

Finding the Fourth Proportional to 202,262.31, 279,004.10 and 129,639.33

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Solution

The fourth proportional to 202,262.31, 279,004.10 and 129,639.33 is: 178,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,262.31 : 279,004.10 = 129,639.33 : x
  2. Step 2: Convert to fraction form
    202,262.31/279,004.10 = 129,639.33/x
  3. Step 3: Cross multiply
    202,262.31x = 279,004.10 × 129,639.33
  4. Step 4: Simplify right side
    202,262.31x = 36,169,903,943.06
  5. Step 5: Solve for x
    x = 36,169,903,943.06/202,262.31
  6. Step 6: Final answer
    x = 178,826.71

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1.5x scale

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.