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Finding the Fourth Proportional to 103,524.80, 142,860.90 and 58,204.68

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Solution

The fourth proportional to 103,524.80, 142,860.90 and 58,204.68 is: 80,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,524.80 : 142,860.90 = 58,204.68 : x
  2. Step 2: Convert to fraction form
    103,524.80/142,860.90 = 58,204.68/x
  3. Step 3: Cross multiply
    103,524.80x = 142,860.90 × 58,204.68
  4. Step 4: Simplify right side
    103,524.80x = 8,315,172,969.01
  5. Step 5: Solve for x
    x = 8,315,172,969.01/103,524.80
  6. Step 6: Final answer
    x = 80,320.59

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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.