Home / 235,689.24-325,250.55-128,259.25

Finding the Fourth Proportional to 235,689.24, 325,250.55 and 128,259.25

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Solution

The fourth proportional to 235,689.24, 325,250.55 and 128,259.25 is: 176,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,689.24 : 325,250.55 = 128,259.25 : x
  2. Step 2: Convert to fraction form
    235,689.24/325,250.55 = 128,259.25/x
  3. Step 3: Cross multiply
    235,689.24x = 325,250.55 × 128,259.25
  4. Step 4: Simplify right side
    235,689.24x = 41,716,390,791.96
  5. Step 5: Solve for x
    x = 41,716,390,791.96/235,689.24
  6. Step 6: Final answer
    x = 176,997.43

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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.