Home / 207,300.06-286,063.56-122,400.72

Finding the Fourth Proportional to 207,300.06, 286,063.56 and 122,400.72

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Solution

The fourth proportional to 207,300.06, 286,063.56 and 122,400.72 is: 168,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,300.06 : 286,063.56 = 122,400.72 : x
  2. Step 2: Convert to fraction form
    207,300.06/286,063.56 = 122,400.72/x
  3. Step 3: Cross multiply
    207,300.06x = 286,063.56 × 122,400.72
  4. Step 4: Simplify right side
    207,300.06x = 35,014,385,709.76
  5. Step 5: Solve for x
    x = 35,014,385,709.76/207,300.06
  6. Step 6: Final answer
    x = 168,906.78

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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.