Home / 152,249.93-210,087.38-87,728.57

Finding the Fourth Proportional to 152,249.93, 210,087.38 and 87,728.57

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Solution

The fourth proportional to 152,249.93, 210,087.38 and 87,728.57 is: 121,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,249.93 : 210,087.38 = 87,728.57 : x
  2. Step 2: Convert to fraction form
    152,249.93/210,087.38 = 87,728.57/x
  3. Step 3: Cross multiply
    152,249.93x = 210,087.38 × 87,728.57
  4. Step 4: Simplify right side
    152,249.93x = 18,430,664,983.80
  5. Step 5: Solve for x
    x = 18,430,664,983.80/152,249.93
  6. Step 6: Final answer
    x = 121,055.33

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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.