Home / 215,995.29-324,137.57-89,635.65

Finding the Fourth Proportional to 215,995.29, 324,137.57 and 89,635.65

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Solution

The fourth proportional to 215,995.29, 324,137.57 and 89,635.65 is: 134,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,995.29 : 324,137.57 = 89,635.65 : x
  2. Step 2: Convert to fraction form
    215,995.29/324,137.57 = 89,635.65/x
  3. Step 3: Cross multiply
    215,995.29x = 324,137.57 × 89,635.65
  4. Step 4: Simplify right side
    215,995.29x = 29,054,281,328.19
  5. Step 5: Solve for x
    x = 29,054,281,328.19/215,995.29
  6. Step 6: Final answer
    x = 134,513.49

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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.