Home / 138,931.94-191,726.27-75,269.73

Finding the Fourth Proportional to 138,931.94, 191,726.27 and 75,269.73

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Solution

The fourth proportional to 138,931.94, 191,726.27 and 75,269.73 is: 103,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,931.94 : 191,726.27 = 75,269.73 : x
  2. Step 2: Convert to fraction form
    138,931.94/191,726.27 = 75,269.73/x
  3. Step 3: Cross multiply
    138,931.94x = 191,726.27 × 75,269.73
  4. Step 4: Simplify right side
    138,931.94x = 14,431,185,625.09
  5. Step 5: Solve for x
    x = 14,431,185,625.09/138,931.94
  6. Step 6: Final answer
    x = 103,872.34

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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.