Home / 235,669.56-325,221.26-128,237.74

Finding the Fourth Proportional to 235,669.56, 325,221.26 and 128,237.74

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Solution

The fourth proportional to 235,669.56, 325,221.26 and 128,237.74 is: 176,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,669.56 : 325,221.26 = 128,237.74 : x
  2. Step 2: Convert to fraction form
    235,669.56/325,221.26 = 128,237.74/x
  3. Step 3: Cross multiply
    235,669.56x = 325,221.26 × 128,237.74
  4. Step 4: Simplify right side
    235,669.56x = 41,705,639,382.35
  5. Step 5: Solve for x
    x = 41,705,639,382.35/235,669.56
  6. Step 6: Final answer
    x = 176,966.59

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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.