Home / 436,690.13-655,035.50-121,147.34

Finding the Fourth Proportional to 436,690.13, 655,035.50 and 121,147.34

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Solution

The fourth proportional to 436,690.13, 655,035.50 and 121,147.34 is: 181,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,690.13 : 655,035.50 = 121,147.34 : x
  2. Step 2: Convert to fraction form
    436,690.13/655,035.50 = 121,147.34/x
  3. Step 3: Cross multiply
    436,690.13x = 655,035.50 × 121,147.34
  4. Step 4: Simplify right side
    436,690.13x = 79,355,804,549.66
  5. Step 5: Solve for x
    x = 79,355,804,549.66/436,690.13
  6. Step 6: Final answer
    x = 181,721.09

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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.