Home / 107,385.30-160,749.90-83,765.70

Finding the Fourth Proportional to 107,385.30, 160,749.90 and 83,765.70

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Solution

The fourth proportional to 107,385.30, 160,749.90 and 83,765.70 is: 125,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,385.30 : 160,749.90 = 83,765.70 : x
  2. Step 2: Convert to fraction form
    107,385.30/160,749.90 = 83,765.70/x
  3. Step 3: Cross multiply
    107,385.30x = 160,749.90 × 83,765.70
  4. Step 4: Simplify right side
    107,385.30x = 13,465,327,898.43
  5. Step 5: Solve for x
    x = 13,465,327,898.43/107,385.30
  6. Step 6: Final answer
    x = 125,392.66

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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.