Home / 131,555.94-181,546.83-71,126.16

Finding the Fourth Proportional to 131,555.94, 181,546.83 and 71,126.16

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Solution

The fourth proportional to 131,555.94, 181,546.83 and 71,126.16 is: 98,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,555.94 : 181,546.83 = 71,126.16 : x
  2. Step 2: Convert to fraction form
    131,555.94/181,546.83 = 71,126.16/x
  3. Step 3: Cross multiply
    131,555.94x = 181,546.83 × 71,126.16
  4. Step 4: Simplify right side
    131,555.94x = 12,912,728,878.07
  5. Step 5: Solve for x
    x = 12,912,728,878.07/131,555.94
  6. Step 6: Final answer
    x = 98,153.90

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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.