Home / 235,539.66-325,041.98-128,107.38

Finding the Fourth Proportional to 235,539.66, 325,041.98 and 128,107.38

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Solution

The fourth proportional to 235,539.66, 325,041.98 and 128,107.38 is: 176,786.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,539.66 : 325,041.98 = 128,107.38 : x
  2. Step 2: Convert to fraction form
    235,539.66/325,041.98 = 128,107.38/x
  3. Step 3: Cross multiply
    235,539.66x = 325,041.98 × 128,107.38
  4. Step 4: Simplify right side
    235,539.66x = 41,640,276,447.81
  5. Step 5: Solve for x
    x = 41,640,276,447.81/235,539.66
  6. Step 6: Final answer
    x = 176,786.69

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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.