Home / 149,729.88-206,625.81-81,746.25

Finding the Fourth Proportional to 149,729.88, 206,625.81 and 81,746.25

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Solution

The fourth proportional to 149,729.88, 206,625.81 and 81,746.25 is: 112,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,729.88 : 206,625.81 = 81,746.25 : x
  2. Step 2: Convert to fraction form
    149,729.88/206,625.81 = 81,746.25/x
  3. Step 3: Cross multiply
    149,729.88x = 206,625.81 × 81,746.25
  4. Step 4: Simplify right side
    149,729.88x = 16,890,885,120.71
  5. Step 5: Solve for x
    x = 16,890,885,120.71/149,729.88
  6. Step 6: Final answer
    x = 112,809.05

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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.