Home / 131,264.73-181,158.93-80,311.41

Finding the Fourth Proportional to 131,264.73, 181,158.93 and 80,311.41

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Solution

The fourth proportional to 131,264.73, 181,158.93 and 80,311.41 is: 110,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,264.73 : 181,158.93 = 80,311.41 : x
  2. Step 2: Convert to fraction form
    131,264.73/181,158.93 = 80,311.41/x
  3. Step 3: Cross multiply
    131,264.73x = 181,158.93 × 80,311.41
  4. Step 4: Simplify right side
    131,264.73x = 14,549,129,102.39
  5. Step 5: Solve for x
    x = 14,549,129,102.39/131,264.73
  6. Step 6: Final answer
    x = 110,838.07

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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.