Home / 147,015.24-220,318.56-76,754.40

Finding the Fourth Proportional to 147,015.24, 220,318.56 and 76,754.40

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Solution

The fourth proportional to 147,015.24, 220,318.56 and 76,754.40 is: 115,024.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015.24 : 220,318.56 = 76,754.40 : x
  2. Step 2: Convert to fraction form
    147,015.24/220,318.56 = 76,754.40/x
  3. Step 3: Cross multiply
    147,015.24x = 220,318.56 × 76,754.40
  4. Step 4: Simplify right side
    147,015.24x = 16,910,418,881.66
  5. Step 5: Solve for x
    x = 16,910,418,881.66/147,015.24
  6. Step 6: Final answer
    x = 115,024.94

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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.