Home / 131,541.12-181,522.32-83,169.09

Finding the Fourth Proportional to 131,541.12, 181,522.32 and 83,169.09

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Solution

The fourth proportional to 131,541.12, 181,522.32 and 83,169.09 is: 114,770.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,541.12 : 181,522.32 = 83,169.09 : x
  2. Step 2: Convert to fraction form
    131,541.12/181,522.32 = 83,169.09/x
  3. Step 3: Cross multiply
    131,541.12x = 181,522.32 × 83,169.09
  4. Step 4: Simplify right side
    131,541.12x = 15,097,045,592.34
  5. Step 5: Solve for x
    x = 15,097,045,592.34/131,541.12
  6. Step 6: Final answer
    x = 114,770.54

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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.