Home / 136,228.20-187,991.10-75,795.72

Finding the Fourth Proportional to 136,228.20, 187,991.10 and 75,795.72

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Solution

The fourth proportional to 136,228.20, 187,991.10 and 75,795.72 is: 104,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,228.20 : 187,991.10 = 75,795.72 : x
  2. Step 2: Convert to fraction form
    136,228.20/187,991.10 = 75,795.72/x
  3. Step 3: Cross multiply
    136,228.20x = 187,991.10 × 75,795.72
  4. Step 4: Simplify right side
    136,228.20x = 14,248,920,778.09
  5. Step 5: Solve for x
    x = 14,248,920,778.09/136,228.20
  6. Step 6: Final answer
    x = 104,595.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.