Home / 125,890.72-188,868.88-47,005.60

Finding the Fourth Proportional to 125,890.72, 188,868.88 and 47,005.60

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Solution

The fourth proportional to 125,890.72, 188,868.88 and 47,005.60 is: 70,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,890.72 : 188,868.88 = 47,005.60 : x
  2. Step 2: Convert to fraction form
    125,890.72/188,868.88 = 47,005.60/x
  3. Step 3: Cross multiply
    125,890.72x = 188,868.88 × 47,005.60
  4. Step 4: Simplify right side
    125,890.72x = 8,877,895,025.73
  5. Step 5: Solve for x
    x = 8,877,895,025.73/125,890.72
  6. Step 6: Final answer
    x = 70,520.65

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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.