Home / 130,335.75-195,131.70-85,826.79

Finding the Fourth Proportional to 130,335.75, 195,131.70 and 85,826.79

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Solution

The fourth proportional to 130,335.75, 195,131.70 and 85,826.79 is: 128,495.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,335.75 : 195,131.70 = 85,826.79 : x
  2. Step 2: Convert to fraction form
    130,335.75/195,131.70 = 85,826.79/x
  3. Step 3: Cross multiply
    130,335.75x = 195,131.70 × 85,826.79
  4. Step 4: Simplify right side
    130,335.75x = 16,747,527,438.24
  5. Step 5: Solve for x
    x = 16,747,527,438.24/130,335.75
  6. Step 6: Final answer
    x = 128,495.27

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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.