Home / 181,729.60-272,638.10-76,578.64

Finding the Fourth Proportional to 181,729.60, 272,638.10 and 76,578.64

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Solution

The fourth proportional to 181,729.60, 272,638.10 and 76,578.64 is: 114,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,729.60 : 272,638.10 = 76,578.64 : x
  2. Step 2: Convert to fraction form
    181,729.60/272,638.10 = 76,578.64/x
  3. Step 3: Cross multiply
    181,729.60x = 272,638.10 × 76,578.64
  4. Step 4: Simplify right side
    181,729.60x = 20,878,254,910.18
  5. Step 5: Solve for x
    x = 20,878,254,910.18/181,729.60
  6. Step 6: Final answer
    x = 114,886.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.