Home / 235,435.32-324,901.53-128,005.02

Finding the Fourth Proportional to 235,435.32, 324,901.53 and 128,005.02

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Solution

The fourth proportional to 235,435.32, 324,901.53 and 128,005.02 is: 176,647.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,435.32 : 324,901.53 = 128,005.02 : x
  2. Step 2: Convert to fraction form
    235,435.32/324,901.53 = 128,005.02/x
  3. Step 3: Cross multiply
    235,435.32x = 324,901.53 × 128,005.02
  4. Step 4: Simplify right side
    235,435.32x = 41,589,026,845.68
  5. Step 5: Solve for x
    x = 41,589,026,845.68/235,435.32
  6. Step 6: Final answer
    x = 176,647.36

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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.