Home / 130,868.56-195,915.32-80,787.63

Finding the Fourth Proportional to 130,868.56, 195,915.32 and 80,787.63

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Solution

The fourth proportional to 130,868.56, 195,915.32 and 80,787.63 is: 120,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,868.56 : 195,915.32 = 80,787.63 : x
  2. Step 2: Convert to fraction form
    130,868.56/195,915.32 = 80,787.63/x
  3. Step 3: Cross multiply
    130,868.56x = 195,915.32 × 80,787.63
  4. Step 4: Simplify right side
    130,868.56x = 15,827,534,383.49
  5. Step 5: Solve for x
    x = 15,827,534,383.49/130,868.56
  6. Step 6: Final answer
    x = 120,942.22

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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.