Home / 236,142.50-325,876.86-128,710.38

Finding the Fourth Proportional to 236,142.50, 325,876.86 and 128,710.38

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Solution

The fourth proportional to 236,142.50, 325,876.86 and 128,710.38 is: 177,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,142.50 : 325,876.86 = 128,710.38 : x
  2. Step 2: Convert to fraction form
    236,142.50/325,876.86 = 128,710.38/x
  3. Step 3: Cross multiply
    236,142.50x = 325,876.86 × 128,710.38
  4. Step 4: Simplify right side
    236,142.50x = 41,943,734,483.81
  5. Step 5: Solve for x
    x = 41,943,734,483.81/236,142.50
  6. Step 6: Final answer
    x = 177,620.44

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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.