Home / 154,215.66-231,358.32-54,383.16

Finding the Fourth Proportional to 154,215.66, 231,358.32 and 54,383.16

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Solution

The fourth proportional to 154,215.66, 231,358.32 and 54,383.16 is: 81,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,215.66 : 231,358.32 = 54,383.16 : x
  2. Step 2: Convert to fraction form
    154,215.66/231,358.32 = 54,383.16/x
  3. Step 3: Cross multiply
    154,215.66x = 231,358.32 × 54,383.16
  4. Step 4: Simplify right side
    154,215.66x = 12,581,996,533.89
  5. Step 5: Solve for x
    x = 12,581,996,533.89/154,215.66
  6. Step 6: Final answer
    x = 81,587.02

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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.