Home / 131,665.02-181,698.57-80,677.86

Finding the Fourth Proportional to 131,665.02, 181,698.57 and 80,677.86

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Solution

The fourth proportional to 131,665.02, 181,698.57 and 80,677.86 is: 111,335.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,665.02 : 181,698.57 = 80,677.86 : x
  2. Step 2: Convert to fraction form
    131,665.02/181,698.57 = 80,677.86/x
  3. Step 3: Cross multiply
    131,665.02x = 181,698.57 × 80,677.86
  4. Step 4: Simplify right side
    131,665.02x = 14,659,051,792.66
  5. Step 5: Solve for x
    x = 14,659,051,792.66/131,665.02
  6. Step 6: Final answer
    x = 111,335.96

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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.