Home / 102,116.16-140,932.96-57,404.16

Finding the Fourth Proportional to 102,116.16, 140,932.96 and 57,404.16

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Solution

The fourth proportional to 102,116.16, 140,932.96 and 57,404.16 is: 79,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,116.16 : 140,932.96 = 57,404.16 : x
  2. Step 2: Convert to fraction form
    102,116.16/140,932.96 = 57,404.16/x
  3. Step 3: Cross multiply
    102,116.16x = 140,932.96 × 57,404.16
  4. Step 4: Simplify right side
    102,116.16x = 8,090,138,185.11
  5. Step 5: Solve for x
    x = 8,090,138,185.11/102,116.16
  6. Step 6: Final answer
    x = 79,224.86

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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.