Home / 129,494.01-178,729.26-87,027.93

Finding the Fourth Proportional to 129,494.01, 178,729.26 and 87,027.93

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Solution

The fourth proportional to 129,494.01, 178,729.26 and 87,027.93 is: 120,117.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,494.01 : 178,729.26 = 87,027.93 : x
  2. Step 2: Convert to fraction form
    129,494.01/178,729.26 = 87,027.93/x
  3. Step 3: Cross multiply
    129,494.01x = 178,729.26 × 87,027.93
  4. Step 4: Simplify right side
    129,494.01x = 15,554,437,528.23
  5. Step 5: Solve for x
    x = 15,554,437,528.23/129,494.01
  6. Step 6: Final answer
    x = 120,117.04

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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.