Home / 235,106.73-324,453.71-138,317.40

Finding the Fourth Proportional to 235,106.73, 324,453.71 and 138,317.40

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Solution

The fourth proportional to 235,106.73, 324,453.71 and 138,317.40 is: 190,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,106.73 : 324,453.71 = 138,317.40 : x
  2. Step 2: Convert to fraction form
    235,106.73/324,453.71 = 138,317.40/x
  3. Step 3: Cross multiply
    235,106.73x = 324,453.71 × 138,317.40
  4. Step 4: Simplify right side
    235,106.73x = 44,877,593,587.55
  5. Step 5: Solve for x
    x = 44,877,593,587.55/235,106.73
  6. Step 6: Final answer
    x = 190,881.79

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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.