Home / 129,682.51-178,963.23-73,093.89

Finding the Fourth Proportional to 129,682.51, 178,963.23 and 73,093.89

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Solution

The fourth proportional to 129,682.51, 178,963.23 and 73,093.89 is: 100,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,682.51 : 178,963.23 = 73,093.89 : x
  2. Step 2: Convert to fraction form
    129,682.51/178,963.23 = 73,093.89/x
  3. Step 3: Cross multiply
    129,682.51x = 178,963.23 × 73,093.89
  4. Step 4: Simplify right side
    129,682.51x = 13,081,117,387.38
  5. Step 5: Solve for x
    x = 13,081,117,387.38/129,682.51
  6. Step 6: Final answer
    x = 100,870.33

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1.5x scale

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.