Home / 235,765.16-325,363.26-128,342.35

Finding the Fourth Proportional to 235,765.16, 325,363.26 and 128,342.35

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Solution

The fourth proportional to 235,765.16, 325,363.26 and 128,342.35 is: 177,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,765.16 : 325,363.26 = 128,342.35 : x
  2. Step 2: Convert to fraction form
    235,765.16/325,363.26 = 128,342.35/x
  3. Step 3: Cross multiply
    235,765.16x = 325,363.26 × 128,342.35
  4. Step 4: Simplify right side
    235,765.16x = 41,757,885,392.06
  5. Step 5: Solve for x
    x = 41,757,885,392.06/235,765.16
  6. Step 6: Final answer
    x = 177,116.44

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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.