Home / 173,121.40-259,536.30-90,015.40

Finding the Fourth Proportional to 173,121.40, 259,536.30 and 90,015.40

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Solution

The fourth proportional to 173,121.40, 259,536.30 and 90,015.40 is: 134,947.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,121.40 : 259,536.30 = 90,015.40 : x
  2. Step 2: Convert to fraction form
    173,121.40/259,536.30 = 90,015.40/x
  3. Step 3: Cross multiply
    173,121.40x = 259,536.30 × 90,015.40
  4. Step 4: Simplify right side
    173,121.40x = 23,362,263,859.02
  5. Step 5: Solve for x
    x = 23,362,263,859.02/173,121.40
  6. Step 6: Final answer
    x = 134,947.29

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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.