Home / 154,238.40-231,415.20-60,809.28

Finding the Fourth Proportional to 154,238.40, 231,415.20 and 60,809.28

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Solution

The fourth proportional to 154,238.40, 231,415.20 and 60,809.28 is: 91,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,238.40 : 231,415.20 = 60,809.28 : x
  2. Step 2: Convert to fraction form
    154,238.40/231,415.20 = 60,809.28/x
  3. Step 3: Cross multiply
    154,238.40x = 231,415.20 × 60,809.28
  4. Step 4: Simplify right side
    154,238.40x = 14,072,191,693.06
  5. Step 5: Solve for x
    x = 14,072,191,693.06/154,238.40
  6. Step 6: Final answer
    x = 91,236.63

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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.