Home / 202,869.81-280,190.07-138,226.95

Finding the Fourth Proportional to 202,869.81, 280,190.07 and 138,226.95

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Solution

The fourth proportional to 202,869.81, 280,190.07 and 138,226.95 is: 190,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,869.81 : 280,190.07 = 138,226.95 : x
  2. Step 2: Convert to fraction form
    202,869.81/280,190.07 = 138,226.95/x
  3. Step 3: Cross multiply
    202,869.81x = 280,190.07 × 138,226.95
  4. Step 4: Simplify right side
    202,869.81x = 38,729,818,796.39
  5. Step 5: Solve for x
    x = 38,729,818,796.39/202,869.81
  6. Step 6: Final answer
    x = 190,909.72

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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.