Home / 129,652.32-178,922.40-73,064.64

Finding the Fourth Proportional to 129,652.32, 178,922.40 and 73,064.64

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Solution

The fourth proportional to 129,652.32, 178,922.40 and 73,064.64 is: 100,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,652.32 : 178,922.40 = 73,064.64 : x
  2. Step 2: Convert to fraction form
    129,652.32/178,922.40 = 73,064.64/x
  3. Step 3: Cross multiply
    129,652.32x = 178,922.40 × 73,064.64
  4. Step 4: Simplify right side
    129,652.32x = 13,072,900,743.94
  5. Step 5: Solve for x
    x = 13,072,900,743.94/129,652.32
  6. Step 6: Final answer
    x = 100,830.44

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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.