Home / 131,008.33-180,663.06-83,178.64

Finding the Fourth Proportional to 131,008.33, 180,663.06 and 83,178.64

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Solution

The fourth proportional to 131,008.33, 180,663.06 and 83,178.64 is: 114,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,008.33 : 180,663.06 = 83,178.64 : x
  2. Step 2: Convert to fraction form
    131,008.33/180,663.06 = 83,178.64/x
  3. Step 3: Cross multiply
    131,008.33x = 180,663.06 × 83,178.64
  4. Step 4: Simplify right side
    131,008.33x = 15,027,308,392.62
  5. Step 5: Solve for x
    x = 15,027,308,392.62/131,008.33
  6. Step 6: Final answer
    x = 114,704.98

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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.