Home / 235,948.89-325,609.92-128,518.59

Finding the Fourth Proportional to 235,948.89, 325,609.92 and 128,518.59

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Solution

The fourth proportional to 235,948.89, 325,609.92 and 128,518.59 is: 177,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,948.89 : 325,609.92 = 128,518.59 : x
  2. Step 2: Convert to fraction form
    235,948.89/325,609.92 = 128,518.59/x
  3. Step 3: Cross multiply
    235,948.89x = 325,609.92 × 128,518.59
  4. Step 4: Simplify right side
    235,948.89x = 41,846,927,808.41
  5. Step 5: Solve for x
    x = 41,846,927,808.41/235,948.89
  6. Step 6: Final answer
    x = 177,355.90

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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.