Home / 130,372.12-179,898.64-73,003.46

Finding the Fourth Proportional to 130,372.12, 179,898.64 and 73,003.46

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Solution

The fourth proportional to 130,372.12, 179,898.64 and 73,003.46 is: 100,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,372.12 : 179,898.64 = 73,003.46 : x
  2. Step 2: Convert to fraction form
    130,372.12/179,898.64 = 73,003.46/x
  3. Step 3: Cross multiply
    130,372.12x = 179,898.64 × 73,003.46
  4. Step 4: Simplify right side
    130,372.12x = 13,133,223,169.29
  5. Step 5: Solve for x
    x = 13,133,223,169.29/130,372.12
  6. Step 6: Final answer
    x = 100,736.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.