Home / 125,604.10-173,238.21-86,906.35

Finding the Fourth Proportional to 125,604.10, 173,238.21 and 86,906.35

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Solution

The fourth proportional to 125,604.10, 173,238.21 and 86,906.35 is: 119,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,604.10 : 173,238.21 = 86,906.35 : x
  2. Step 2: Convert to fraction form
    125,604.10/173,238.21 = 86,906.35/x
  3. Step 3: Cross multiply
    125,604.10x = 173,238.21 × 86,906.35
  4. Step 4: Simplify right side
    125,604.10x = 15,055,500,511.63
  5. Step 5: Solve for x
    x = 15,055,500,511.63/125,604.10
  6. Step 6: Final answer
    x = 119,864.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.