Home / 235,948.23-325,613.56-128,518

Finding the Fourth Proportional to 235,948.23, 325,613.56 and 128,518

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Solution

The fourth proportional to 235,948.23, 325,613.56 and 128,518 is: 177,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,948.23 : 325,613.56 = 128,518 : x
  2. Step 2: Convert to fraction form
    235,948.23/325,613.56 = 128,518/x
  3. Step 3: Cross multiply
    235,948.23x = 325,613.56 × 128,518
  4. Step 4: Simplify right side
    235,948.23x = 41,847,203,504.08
  5. Step 5: Solve for x
    x = 41,847,203,504.08/235,948.23
  6. Step 6: Final answer
    x = 177,357.56

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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.