Home / 129,998.49-194,854.61-85,001.29

Finding the Fourth Proportional to 129,998.49, 194,854.61 and 85,001.29

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Solution

The fourth proportional to 129,998.49, 194,854.61 and 85,001.29 is: 127,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,998.49 : 194,854.61 = 85,001.29 : x
  2. Step 2: Convert to fraction form
    129,998.49/194,854.61 = 85,001.29/x
  3. Step 3: Cross multiply
    129,998.49x = 194,854.61 × 85,001.29
  4. Step 4: Simplify right side
    129,998.49x = 16,562,892,937.81
  5. Step 5: Solve for x
    x = 16,562,892,937.81/129,998.49
  6. Step 6: Final answer
    x = 127,408.35

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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.