Home / 154,340.32-231,515.32-53,137.28

Finding the Fourth Proportional to 154,340.32, 231,515.32 and 53,137.28

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Solution

The fourth proportional to 154,340.32, 231,515.32 and 53,137.28 is: 79,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,340.32 : 231,515.32 = 53,137.28 : x
  2. Step 2: Convert to fraction form
    154,340.32/231,515.32 = 53,137.28/x
  3. Step 3: Cross multiply
    154,340.32x = 231,515.32 × 53,137.28
  4. Step 4: Simplify right side
    154,340.32x = 12,302,094,383.13
  5. Step 5: Solve for x
    x = 12,302,094,383.13/154,340.32
  6. Step 6: Final answer
    x = 79,707.59

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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.