Home / 154,088.40-231,127.74-91,338.51

Finding the Fourth Proportional to 154,088.40, 231,127.74 and 91,338.51

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Solution

The fourth proportional to 154,088.40, 231,127.74 and 91,338.51 is: 137,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,088.40 : 231,127.74 = 91,338.51 : x
  2. Step 2: Convert to fraction form
    154,088.40/231,127.74 = 91,338.51/x
  3. Step 3: Cross multiply
    154,088.40x = 231,127.74 × 91,338.51
  4. Step 4: Simplify right side
    154,088.40x = 21,110,863,391.27
  5. Step 5: Solve for x
    x = 21,110,863,391.27/154,088.40
  6. Step 6: Final answer
    x = 137,004.88

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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.