Home / 436,729.18-655,094.10-121,186.39

Finding the Fourth Proportional to 436,729.18, 655,094.10 and 121,186.39

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Solution

The fourth proportional to 436,729.18, 655,094.10 and 121,186.39 is: 181,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,729.18 : 655,094.10 = 121,186.39 : x
  2. Step 2: Convert to fraction form
    436,729.18/655,094.10 = 121,186.39/x
  3. Step 3: Cross multiply
    436,729.18x = 655,094.10 × 121,186.39
  4. Step 4: Simplify right side
    436,729.18x = 79,388,489,089.30
  5. Step 5: Solve for x
    x = 79,388,489,089.30/436,729.18
  6. Step 6: Final answer
    x = 181,779.68

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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.