Home / 130,484.15-195,772.86-80,506.07

Finding the Fourth Proportional to 130,484.15, 195,772.86 and 80,506.07

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Solution

The fourth proportional to 130,484.15, 195,772.86 and 80,506.07 is: 120,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,484.15 : 195,772.86 = 80,506.07 : x
  2. Step 2: Convert to fraction form
    130,484.15/195,772.86 = 80,506.07/x
  3. Step 3: Cross multiply
    130,484.15x = 195,772.86 × 80,506.07
  4. Step 4: Simplify right side
    130,484.15x = 15,760,903,571.26
  5. Step 5: Solve for x
    x = 15,760,903,571.26/130,484.15
  6. Step 6: Final answer
    x = 120,787.88

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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.