Home / 125,137.85-187,705.20-30,368.81

Finding the Fourth Proportional to 125,137.85, 187,705.20 and 30,368.81

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Solution

The fourth proportional to 125,137.85, 187,705.20 and 30,368.81 is: 45,552.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,137.85 : 187,705.20 = 30,368.81 : x
  2. Step 2: Convert to fraction form
    125,137.85/187,705.20 = 30,368.81/x
  3. Step 3: Cross multiply
    125,137.85x = 187,705.20 × 30,368.81
  4. Step 4: Simplify right side
    125,137.85x = 5,700,384,137.96
  5. Step 5: Solve for x
    x = 5,700,384,137.96/125,137.85
  6. Step 6: Final answer
    x = 45,552.84

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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.