Home / 102,512.34-141,467.09-57,190.32

Finding the Fourth Proportional to 102,512.34, 141,467.09 and 57,190.32

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Solution

The fourth proportional to 102,512.34, 141,467.09 and 57,190.32 is: 78,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,512.34 : 141,467.09 = 57,190.32 : x
  2. Step 2: Convert to fraction form
    102,512.34/141,467.09 = 57,190.32/x
  3. Step 3: Cross multiply
    102,512.34x = 141,467.09 × 57,190.32
  4. Step 4: Simplify right side
    102,512.34x = 8,090,548,146.57
  5. Step 5: Solve for x
    x = 8,090,548,146.57/102,512.34
  6. Step 6: Final answer
    x = 78,922.68

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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.