Home / 200,143.74-276,102.93-123,635.28

Finding the Fourth Proportional to 200,143.74, 276,102.93 and 123,635.28

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Solution

The fourth proportional to 200,143.74, 276,102.93 and 123,635.28 is: 170,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,143.74 : 276,102.93 = 123,635.28 : x
  2. Step 2: Convert to fraction form
    200,143.74/276,102.93 = 123,635.28/x
  3. Step 3: Cross multiply
    200,143.74x = 276,102.93 × 123,635.28
  4. Step 4: Simplify right side
    200,143.74x = 34,136,063,059.37
  5. Step 5: Solve for x
    x = 34,136,063,059.37/200,143.74
  6. Step 6: Final answer
    x = 170,557.74

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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.