Home / 131,154.96-181,191.24-85,940.40

Finding the Fourth Proportional to 131,154.96, 181,191.24 and 85,940.40

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Solution

The fourth proportional to 131,154.96, 181,191.24 and 85,940.40 is: 118,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,154.96 : 181,191.24 = 85,940.40 : x
  2. Step 2: Convert to fraction form
    131,154.96/181,191.24 = 85,940.40/x
  3. Step 3: Cross multiply
    131,154.96x = 181,191.24 × 85,940.40
  4. Step 4: Simplify right side
    131,154.96x = 15,571,647,642.10
  5. Step 5: Solve for x
    x = 15,571,647,642.10/131,154.96
  6. Step 6: Final answer
    x = 118,727.10

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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.