Home / 129,631.04-178,889.28-73,052

Finding the Fourth Proportional to 129,631.04, 178,889.28 and 73,052

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Solution

The fourth proportional to 129,631.04, 178,889.28 and 73,052 is: 100,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,631.04 : 178,889.28 = 73,052 : x
  2. Step 2: Convert to fraction form
    129,631.04/178,889.28 = 73,052/x
  3. Step 3: Cross multiply
    129,631.04x = 178,889.28 × 73,052
  4. Step 4: Simplify right side
    129,631.04x = 13,068,219,682.56
  5. Step 5: Solve for x
    x = 13,068,219,682.56/129,631.04
  6. Step 6: Final answer
    x = 100,810.88

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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.