Home / 96,128.20-143,852.10-83,783.80

Finding the Fourth Proportional to 96,128.20, 143,852.10 and 83,783.80

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Solution

The fourth proportional to 96,128.20, 143,852.10 and 83,783.80 is: 125,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,128.20 : 143,852.10 = 83,783.80 : x
  2. Step 2: Convert to fraction form
    96,128.20/143,852.10 = 83,783.80/x
  3. Step 3: Cross multiply
    96,128.20x = 143,852.10 × 83,783.80
  4. Step 4: Simplify right side
    96,128.20x = 12,052,475,575.98
  5. Step 5: Solve for x
    x = 12,052,475,575.98/96,128.20
  6. Step 6: Final answer
    x = 125,379.19

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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.