Home / 136,206.15-187,961.90-75,776.60

Finding the Fourth Proportional to 136,206.15, 187,961.90 and 75,776.60

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Solution

The fourth proportional to 136,206.15, 187,961.90 and 75,776.60 is: 104,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,206.15 : 187,961.90 = 75,776.60 : x
  2. Step 2: Convert to fraction form
    136,206.15/187,961.90 = 75,776.60/x
  3. Step 3: Cross multiply
    136,206.15x = 187,961.90 × 75,776.60
  4. Step 4: Simplify right side
    136,206.15x = 14,243,113,711.54
  5. Step 5: Solve for x
    x = 14,243,113,711.54/136,206.15
  6. Step 6: Final answer
    x = 104,570.27

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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.