Home / 103,070.62-142,249.26-57,760.84

Finding the Fourth Proportional to 103,070.62, 142,249.26 and 57,760.84

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Solution

The fourth proportional to 103,070.62, 142,249.26 and 57,760.84 is: 79,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,070.62 : 142,249.26 = 57,760.84 : x
  2. Step 2: Convert to fraction form
    103,070.62/142,249.26 = 57,760.84/x
  3. Step 3: Cross multiply
    103,070.62x = 142,249.26 × 57,760.84
  4. Step 4: Simplify right side
    103,070.62x = 8,216,436,746.98
  5. Step 5: Solve for x
    x = 8,216,436,746.98/103,070.62
  6. Step 6: Final answer
    x = 79,716.57

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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.