Home / 133,196.30-183,814.50-79,512.47

Finding the Fourth Proportional to 133,196.30, 183,814.50 and 79,512.47

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Solution

The fourth proportional to 133,196.30, 183,814.50 and 79,512.47 is: 109,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,196.30 : 183,814.50 = 79,512.47 : x
  2. Step 2: Convert to fraction form
    133,196.30/183,814.50 = 79,512.47/x
  3. Step 3: Cross multiply
    133,196.30x = 183,814.50 × 79,512.47
  4. Step 4: Simplify right side
    133,196.30x = 14,615,544,985.22
  5. Step 5: Solve for x
    x = 14,615,544,985.22/133,196.30
  6. Step 6: Final answer
    x = 109,729.36

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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.