Home / 125,234.82-172,841.75-77,503.54

Finding the Fourth Proportional to 125,234.82, 172,841.75 and 77,503.54

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Solution

The fourth proportional to 125,234.82, 172,841.75 and 77,503.54 is: 106,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,234.82 : 172,841.75 = 77,503.54 : x
  2. Step 2: Convert to fraction form
    125,234.82/172,841.75 = 77,503.54/x
  3. Step 3: Cross multiply
    125,234.82x = 172,841.75 × 77,503.54
  4. Step 4: Simplify right side
    125,234.82x = 13,395,847,484.80
  5. Step 5: Solve for x
    x = 13,395,847,484.80/125,234.82
  6. Step 6: Final answer
    x = 106,965.84

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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.