Home / 102,092.12-140,887.02-57,380.12

Finding the Fourth Proportional to 102,092.12, 140,887.02 and 57,380.12

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Solution

The fourth proportional to 102,092.12, 140,887.02 and 57,380.12 is: 79,184.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,092.12 : 140,887.02 = 57,380.12 : x
  2. Step 2: Convert to fraction form
    102,092.12/140,887.02 = 57,380.12/x
  3. Step 3: Cross multiply
    102,092.12x = 140,887.02 × 57,380.12
  4. Step 4: Simplify right side
    102,092.12x = 8,084,114,114.04
  5. Step 5: Solve for x
    x = 8,084,114,114.04/102,092.12
  6. Step 6: Final answer
    x = 79,184.51

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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.