Home / 131,333.28-181,246.71-80,330.01

Finding the Fourth Proportional to 131,333.28, 181,246.71 and 80,330.01

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Solution

The fourth proportional to 131,333.28, 181,246.71 and 80,330.01 is: 110,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,333.28 : 181,246.71 = 80,330.01 : x
  2. Step 2: Convert to fraction form
    131,333.28/181,246.71 = 80,330.01/x
  3. Step 3: Cross multiply
    131,333.28x = 181,246.71 × 80,330.01
  4. Step 4: Simplify right side
    131,333.28x = 14,559,550,026.77
  5. Step 5: Solve for x
    x = 14,559,550,026.77/131,333.28
  6. Step 6: Final answer
    x = 110,859.56

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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.