Home / 125,612.08-173,171.46-100,204.68

Finding the Fourth Proportional to 125,612.08, 173,171.46 and 100,204.68

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Solution

The fourth proportional to 125,612.08, 173,171.46 and 100,204.68 is: 138,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,612.08 : 173,171.46 = 100,204.68 : x
  2. Step 2: Convert to fraction form
    125,612.08/173,171.46 = 100,204.68/x
  3. Step 3: Cross multiply
    125,612.08x = 173,171.46 × 100,204.68
  4. Step 4: Simplify right side
    125,612.08x = 17,352,590,734.43
  5. Step 5: Solve for x
    x = 17,352,590,734.43/125,612.08
  6. Step 6: Final answer
    x = 138,144.28

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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.