Home / 125,029.88-187,415.22-78,175.16

Finding the Fourth Proportional to 125,029.88, 187,415.22 and 78,175.16

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Solution

The fourth proportional to 125,029.88, 187,415.22 and 78,175.16 is: 117,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,029.88 : 187,415.22 = 78,175.16 : x
  2. Step 2: Convert to fraction form
    125,029.88/187,415.22 = 78,175.16/x
  3. Step 3: Cross multiply
    125,029.88x = 187,415.22 × 78,175.16
  4. Step 4: Simplify right side
    125,029.88x = 14,651,214,809.94
  5. Step 5: Solve for x
    x = 14,651,214,809.94/125,029.88
  6. Step 6: Final answer
    x = 117,181.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.