Home / 125,431.49-188,099.03-45,445.95

Finding the Fourth Proportional to 125,431.49, 188,099.03 and 45,445.95

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Solution

The fourth proportional to 125,431.49, 188,099.03 and 45,445.95 is: 68,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,431.49 : 188,099.03 = 45,445.95 : x
  2. Step 2: Convert to fraction form
    125,431.49/188,099.03 = 45,445.95/x
  3. Step 3: Cross multiply
    125,431.49x = 188,099.03 × 45,445.95
  4. Step 4: Simplify right side
    125,431.49x = 8,548,339,226.04
  5. Step 5: Solve for x
    x = 8,548,339,226.04/125,431.49
  6. Step 6: Final answer
    x = 68,151.46

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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.