Home / 111,011.20-166,515.90-47,875.96

Finding the Fourth Proportional to 111,011.20, 166,515.90 and 47,875.96

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Solution

The fourth proportional to 111,011.20, 166,515.90 and 47,875.96 is: 71,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,011.20 : 166,515.90 = 47,875.96 : x
  2. Step 2: Convert to fraction form
    111,011.20/166,515.90 = 47,875.96/x
  3. Step 3: Cross multiply
    111,011.20x = 166,515.90 × 47,875.96
  4. Step 4: Simplify right side
    111,011.20x = 7,972,108,567.76
  5. Step 5: Solve for x
    x = 7,972,108,567.76/111,011.20
  6. Step 6: Final answer
    x = 71,813.55

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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.