Home / 136,210.20-187,966.26-75,777.72

Finding the Fourth Proportional to 136,210.20, 187,966.26 and 75,777.72

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Solution

The fourth proportional to 136,210.20, 187,966.26 and 75,777.72 is: 104,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,210.20 : 187,966.26 = 75,777.72 : x
  2. Step 2: Convert to fraction form
    136,210.20/187,966.26 = 75,777.72/x
  3. Step 3: Cross multiply
    136,210.20x = 187,966.26 × 75,777.72
  4. Step 4: Simplify right side
    136,210.20x = 14,243,654,619.73
  5. Step 5: Solve for x
    x = 14,243,654,619.73/136,210.20
  6. Step 6: Final answer
    x = 104,571.13

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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.