Home / 130,759.21-196,138.82-91,393.21

Finding the Fourth Proportional to 130,759.21, 196,138.82 and 91,393.21

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Solution

The fourth proportional to 130,759.21, 196,138.82 and 91,393.21 is: 137,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,759.21 : 196,138.82 = 91,393.21 : x
  2. Step 2: Convert to fraction form
    130,759.21/196,138.82 = 91,393.21/x
  3. Step 3: Cross multiply
    130,759.21x = 196,138.82 × 91,393.21
  4. Step 4: Simplify right side
    130,759.21x = 17,925,756,365.41
  5. Step 5: Solve for x
    x = 17,925,756,365.41/130,759.21
  6. Step 6: Final answer
    x = 137,089.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.