Home / 125,608.08-173,165.94-100,200.68

Finding the Fourth Proportional to 125,608.08, 173,165.94 and 100,200.68

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Solution

The fourth proportional to 125,608.08, 173,165.94 and 100,200.68 is: 138,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,608.08 : 173,165.94 = 100,200.68 : x
  2. Step 2: Convert to fraction form
    125,608.08/173,165.94 = 100,200.68/x
  3. Step 3: Cross multiply
    125,608.08x = 173,165.94 × 100,200.68
  4. Step 4: Simplify right side
    125,608.08x = 17,351,344,075.01
  5. Step 5: Solve for x
    x = 17,351,344,075.01/125,608.08
  6. Step 6: Final answer
    x = 138,138.76

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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.