Home / 103,028.82-142,170.21-58,316.82

Finding the Fourth Proportional to 103,028.82, 142,170.21 and 58,316.82

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Solution

The fourth proportional to 103,028.82, 142,170.21 and 58,316.82 is: 80,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,028.82 : 142,170.21 = 58,316.82 : x
  2. Step 2: Convert to fraction form
    103,028.82/142,170.21 = 58,316.82/x
  3. Step 3: Cross multiply
    103,028.82x = 142,170.21 × 58,316.82
  4. Step 4: Simplify right side
    103,028.82x = 8,290,914,545.93
  5. Step 5: Solve for x
    x = 8,290,914,545.93/103,028.82
  6. Step 6: Final answer
    x = 80,471.80

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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.