Home / 207,862.50-286,896.16-135,138.83

Finding the Fourth Proportional to 207,862.50, 286,896.16 and 135,138.83

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Solution

The fourth proportional to 207,862.50, 286,896.16 and 135,138.83 is: 186,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,862.50 : 286,896.16 = 135,138.83 : x
  2. Step 2: Convert to fraction form
    207,862.50/286,896.16 = 135,138.83/x
  3. Step 3: Cross multiply
    207,862.50x = 286,896.16 × 135,138.83
  4. Step 4: Simplify right side
    207,862.50x = 38,770,809,959.41
  5. Step 5: Solve for x
    x = 38,770,809,959.41/207,862.50
  6. Step 6: Final answer
    x = 186,521.43

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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.