Home / 140,725.64-194,205.78-77,069.48

Finding the Fourth Proportional to 140,725.64, 194,205.78 and 77,069.48

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Solution

The fourth proportional to 140,725.64, 194,205.78 and 77,069.48 is: 106,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,725.64 : 194,205.78 = 77,069.48 : x
  2. Step 2: Convert to fraction form
    140,725.64/194,205.78 = 77,069.48/x
  3. Step 3: Cross multiply
    140,725.64x = 194,205.78 × 77,069.48
  4. Step 4: Simplify right side
    140,725.64x = 14,967,338,477.59
  5. Step 5: Solve for x
    x = 14,967,338,477.59/140,725.64
  6. Step 6: Final answer
    x = 106,358.29

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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.