Home / 107,311.45-160,970.24-28,425.69

Finding the Fourth Proportional to 107,311.45, 160,970.24 and 28,425.69

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Solution

The fourth proportional to 107,311.45, 160,970.24 and 28,425.69 is: 42,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,311.45 : 160,970.24 = 28,425.69 : x
  2. Step 2: Convert to fraction form
    107,311.45/160,970.24 = 28,425.69/x
  3. Step 3: Cross multiply
    107,311.45x = 160,970.24 × 28,425.69
  4. Step 4: Simplify right side
    107,311.45x = 4,575,690,141.47
  5. Step 5: Solve for x
    x = 4,575,690,141.47/107,311.45
  6. Step 6: Final answer
    x = 42,639.35

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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.