Home / 131,256.84-181,129.63-80,250.54

Finding the Fourth Proportional to 131,256.84, 181,129.63 and 80,250.54

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Solution

The fourth proportional to 131,256.84, 181,129.63 and 80,250.54 is: 110,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,256.84 : 181,129.63 = 80,250.54 : x
  2. Step 2: Convert to fraction form
    131,256.84/181,129.63 = 80,250.54/x
  3. Step 3: Cross multiply
    131,256.84x = 181,129.63 × 80,250.54
  4. Step 4: Simplify right side
    131,256.84x = 14,535,750,617.50
  5. Step 5: Solve for x
    x = 14,535,750,617.50/131,256.84
  6. Step 6: Final answer
    x = 110,742.80

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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.