Home / 154,620.24-213,369.96-87,552.40

Finding the Fourth Proportional to 154,620.24, 213,369.96 and 87,552.40

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Solution

The fourth proportional to 154,620.24, 213,369.96 and 87,552.40 is: 120,818.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,620.24 : 213,369.96 = 87,552.40 : x
  2. Step 2: Convert to fraction form
    154,620.24/213,369.96 = 87,552.40/x
  3. Step 3: Cross multiply
    154,620.24x = 213,369.96 × 87,552.40
  4. Step 4: Simplify right side
    154,620.24x = 18,681,052,085.90
  5. Step 5: Solve for x
    x = 18,681,052,085.90/154,620.24
  6. Step 6: Final answer
    x = 120,818.93

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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.