Home / 136,226.61-187,964.55-79,627.05

Finding the Fourth Proportional to 136,226.61, 187,964.55 and 79,627.05

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Solution

The fourth proportional to 136,226.61, 187,964.55 and 79,627.05 is: 109,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,226.61 : 187,964.55 = 79,627.05 : x
  2. Step 2: Convert to fraction form
    136,226.61/187,964.55 = 79,627.05/x
  3. Step 3: Cross multiply
    136,226.61x = 187,964.55 × 79,627.05
  4. Step 4: Simplify right side
    136,226.61x = 14,967,062,621.08
  5. Step 5: Solve for x
    x = 14,967,062,621.08/136,226.61
  6. Step 6: Final answer
    x = 109,868.86

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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.