Home / 435,418.18-653,151.57-135,940.12

Finding the Fourth Proportional to 435,418.18, 653,151.57 and 135,940.12

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Solution

The fourth proportional to 435,418.18, 653,151.57 and 135,940.12 is: 203,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,418.18 : 653,151.57 = 135,940.12 : x
  2. Step 2: Convert to fraction form
    435,418.18/653,151.57 = 135,940.12/x
  3. Step 3: Cross multiply
    435,418.18x = 653,151.57 × 135,940.12
  4. Step 4: Simplify right side
    435,418.18x = 88,789,502,803.99
  5. Step 5: Solve for x
    x = 88,789,502,803.99/435,418.18
  6. Step 6: Final answer
    x = 203,917.77

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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.