Home / 129,675.78-178,953.98-73,087.16

Finding the Fourth Proportional to 129,675.78, 178,953.98 and 73,087.16

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Solution

The fourth proportional to 129,675.78, 178,953.98 and 73,087.16 is: 100,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,675.78 : 178,953.98 = 73,087.16 : x
  2. Step 2: Convert to fraction form
    129,675.78/178,953.98 = 73,087.16/x
  3. Step 3: Cross multiply
    129,675.78x = 178,953.98 × 73,087.16
  4. Step 4: Simplify right side
    129,675.78x = 13,079,236,908.69
  5. Step 5: Solve for x
    x = 13,079,236,908.69/129,675.78
  6. Step 6: Final answer
    x = 100,861.06

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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.