Home / 131,644.32-181,595.34-80,681.75

Finding the Fourth Proportional to 131,644.32, 181,595.34 and 80,681.75

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Solution

The fourth proportional to 131,644.32, 181,595.34 and 80,681.75 is: 111,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,644.32 : 181,595.34 = 80,681.75 : x
  2. Step 2: Convert to fraction form
    131,644.32/181,595.34 = 80,681.75/x
  3. Step 3: Cross multiply
    131,644.32x = 181,595.34 × 80,681.75
  4. Step 4: Simplify right side
    131,644.32x = 14,651,429,823.05
  5. Step 5: Solve for x
    x = 14,651,429,823.05/131,644.32
  6. Step 6: Final answer
    x = 111,295.57

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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.