Home / 137,687.28-190,008.54-77,249.58

Finding the Fourth Proportional to 137,687.28, 190,008.54 and 77,249.58

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Solution

The fourth proportional to 137,687.28, 190,008.54 and 77,249.58 is: 106,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,687.28 : 190,008.54 = 77,249.58 : x
  2. Step 2: Convert to fraction form
    137,687.28/190,008.54 = 77,249.58/x
  3. Step 3: Cross multiply
    137,687.28x = 190,008.54 × 77,249.58
  4. Step 4: Simplify right side
    137,687.28x = 14,678,079,911.41
  5. Step 5: Solve for x
    x = 14,678,079,911.41/137,687.28
  6. Step 6: Final answer
    x = 106,604.47

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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.