Home / 130,475.50-195,380.94-85,967.35

Finding the Fourth Proportional to 130,475.50, 195,380.94 and 85,967.35

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Solution

The fourth proportional to 130,475.50, 195,380.94 and 85,967.35 is: 128,732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,475.50 : 195,380.94 = 85,967.35 : x
  2. Step 2: Convert to fraction form
    130,475.50/195,380.94 = 85,967.35/x
  3. Step 3: Cross multiply
    130,475.50x = 195,380.94 × 85,967.35
  4. Step 4: Simplify right side
    130,475.50x = 16,796,381,652.31
  5. Step 5: Solve for x
    x = 16,796,381,652.31/130,475.50
  6. Step 6: Final answer
    x = 128,732.07

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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.