Home / 102,992.75-142,132.16-58,280.75

Finding the Fourth Proportional to 102,992.75, 142,132.16 and 58,280.75

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Solution

The fourth proportional to 102,992.75, 142,132.16 and 58,280.75 is: 80,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,992.75 : 142,132.16 = 58,280.75 : x
  2. Step 2: Convert to fraction form
    102,992.75/142,132.16 = 58,280.75/x
  3. Step 3: Cross multiply
    102,992.75x = 142,132.16 × 58,280.75
  4. Step 4: Simplify right side
    102,992.75x = 8,283,568,883.92
  5. Step 5: Solve for x
    x = 8,283,568,883.92/102,992.75
  6. Step 6: Final answer
    x = 80,428.66

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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.