Home / 131,738.41-181,802.55-80,037.91

Finding the Fourth Proportional to 131,738.41, 181,802.55 and 80,037.91

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Solution

The fourth proportional to 131,738.41, 181,802.55 and 80,037.91 is: 110,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,738.41 : 181,802.55 = 80,037.91 : x
  2. Step 2: Convert to fraction form
    131,738.41/181,802.55 = 80,037.91/x
  3. Step 3: Cross multiply
    131,738.41x = 181,802.55 × 80,037.91
  4. Step 4: Simplify right side
    131,738.41x = 14,551,096,134.67
  5. Step 5: Solve for x
    x = 14,551,096,134.67/131,738.41
  6. Step 6: Final answer
    x = 110,454.47

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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.