Home / 235,839.72-325,464.65-128,415.63

Finding the Fourth Proportional to 235,839.72, 325,464.65 and 128,415.63

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Solution

The fourth proportional to 235,839.72, 325,464.65 and 128,415.63 is: 177,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,839.72 : 325,464.65 = 128,415.63 : x
  2. Step 2: Convert to fraction form
    235,839.72/325,464.65 = 128,415.63/x
  3. Step 3: Cross multiply
    235,839.72x = 325,464.65 × 128,415.63
  4. Step 4: Simplify right side
    235,839.72x = 41,794,747,430.40
  5. Step 5: Solve for x
    x = 41,794,747,430.40/235,839.72
  6. Step 6: Final answer
    x = 177,216.74

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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.