Home / 207,938.70-286,823.27-136,323.36

Finding the Fourth Proportional to 207,938.70, 286,823.27 and 136,323.36

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Solution

The fourth proportional to 207,938.70, 286,823.27 and 136,323.36 is: 188,039.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,938.70 : 286,823.27 = 136,323.36 : x
  2. Step 2: Convert to fraction form
    207,938.70/286,823.27 = 136,323.36/x
  3. Step 3: Cross multiply
    207,938.70x = 286,823.27 × 136,323.36
  4. Step 4: Simplify right side
    207,938.70x = 39,100,711,210.97
  5. Step 5: Solve for x
    x = 39,100,711,210.97/207,938.70
  6. Step 6: Final answer
    x = 188,039.61

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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.