Home / 130,474.50-195,379.44-85,966.35

Finding the Fourth Proportional to 130,474.50, 195,379.44 and 85,966.35

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Solution

The fourth proportional to 130,474.50, 195,379.44 and 85,966.35 is: 128,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,474.50 : 195,379.44 = 85,966.35 : x
  2. Step 2: Convert to fraction form
    130,474.50/195,379.44 = 85,966.35/x
  3. Step 3: Cross multiply
    130,474.50x = 195,379.44 × 85,966.35
  4. Step 4: Simplify right side
    130,474.50x = 16,796,056,750.36
  5. Step 5: Solve for x
    x = 16,796,056,750.36/130,474.50
  6. Step 6: Final answer
    x = 128,730.57

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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.