Home / 149,815.84-206,738.64-82,746.40

Finding the Fourth Proportional to 149,815.84, 206,738.64 and 82,746.40

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Solution

The fourth proportional to 149,815.84, 206,738.64 and 82,746.40 is: 114,186.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,815.84 : 206,738.64 = 82,746.40 : x
  2. Step 2: Convert to fraction form
    149,815.84/206,738.64 = 82,746.40/x
  3. Step 3: Cross multiply
    149,815.84x = 206,738.64 × 82,746.40
  4. Step 4: Simplify right side
    149,815.84x = 17,106,878,200.90
  5. Step 5: Solve for x
    x = 17,106,878,200.90/149,815.84
  6. Step 6: Final answer
    x = 114,186.04

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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.