Home / 235,159.20-324,518.40-127,728.36

Finding the Fourth Proportional to 235,159.20, 324,518.40 and 127,728.36

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Solution

The fourth proportional to 235,159.20, 324,518.40 and 127,728.36 is: 176,264.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,159.20 : 324,518.40 = 127,728.36 : x
  2. Step 2: Convert to fraction form
    235,159.20/324,518.40 = 127,728.36/x
  3. Step 3: Cross multiply
    235,159.20x = 324,518.40 × 127,728.36
  4. Step 4: Simplify right side
    235,159.20x = 41,450,203,021.82
  5. Step 5: Solve for x
    x = 41,450,203,021.82/235,159.20
  6. Step 6: Final answer
    x = 176,264.43

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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.