Home / 200,421.02-276,476.19-123,915.66

Finding the Fourth Proportional to 200,421.02, 276,476.19 and 123,915.66

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Solution

The fourth proportional to 200,421.02, 276,476.19 and 123,915.66 is: 170,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,421.02 : 276,476.19 = 123,915.66 : x
  2. Step 2: Convert to fraction form
    200,421.02/276,476.19 = 123,915.66/x
  3. Step 3: Cross multiply
    200,421.02x = 276,476.19 × 123,915.66
  4. Step 4: Simplify right side
    200,421.02x = 34,259,729,558.14
  5. Step 5: Solve for x
    x = 34,259,729,558.14/200,421.02
  6. Step 6: Final answer
    x = 170,938.81

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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.