Home / 129,739.60-194,609.40-83,083.60

Finding the Fourth Proportional to 129,739.60, 194,609.40 and 83,083.60

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Solution

The fourth proportional to 129,739.60, 194,609.40 and 83,083.60 is: 124,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,739.60 : 194,609.40 = 83,083.60 : x
  2. Step 2: Convert to fraction form
    129,739.60/194,609.40 = 83,083.60/x
  3. Step 3: Cross multiply
    129,739.60x = 194,609.40 × 83,083.60
  4. Step 4: Simplify right side
    129,739.60x = 16,168,849,545.84
  5. Step 5: Solve for x
    x = 16,168,849,545.84/129,739.60
  6. Step 6: Final answer
    x = 124,625.40

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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.