Home / 129,686.06-178,969.50-73,097.44

Finding the Fourth Proportional to 129,686.06, 178,969.50 and 73,097.44

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Solution

The fourth proportional to 129,686.06, 178,969.50 and 73,097.44 is: 100,876.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,686.06 : 178,969.50 = 73,097.44 : x
  2. Step 2: Convert to fraction form
    129,686.06/178,969.50 = 73,097.44/x
  3. Step 3: Cross multiply
    129,686.06x = 178,969.50 × 73,097.44
  4. Step 4: Simplify right side
    129,686.06x = 13,082,211,840.66
  5. Step 5: Solve for x
    x = 13,082,211,840.66/129,686.06
  6. Step 6: Final answer
    x = 100,876.00

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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.