Home / 129,642.29-178,906.35-73,055.69

Finding the Fourth Proportional to 129,642.29, 178,906.35 and 73,055.69

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Solution

The fourth proportional to 129,642.29, 178,906.35 and 73,055.69 is: 100,816.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,642.29 : 178,906.35 = 73,055.69 : x
  2. Step 2: Convert to fraction form
    129,642.29/178,906.35 = 73,055.69/x
  3. Step 3: Cross multiply
    129,642.29x = 178,906.35 × 73,055.69
  4. Step 4: Simplify right side
    129,642.29x = 13,070,125,950.10
  5. Step 5: Solve for x
    x = 13,070,125,950.10/129,642.29
  6. Step 6: Final answer
    x = 100,816.84

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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.