Home / 425,021.69-637,616.66-121,418.46

Finding the Fourth Proportional to 425,021.69, 637,616.66 and 121,418.46

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Solution

The fourth proportional to 425,021.69, 637,616.66 and 121,418.46 is: 182,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,021.69 : 637,616.66 = 121,418.46 : x
  2. Step 2: Convert to fraction form
    425,021.69/637,616.66 = 121,418.46/x
  3. Step 3: Cross multiply
    425,021.69x = 637,616.66 × 121,418.46
  4. Step 4: Simplify right side
    425,021.69x = 77,418,432,927.54
  5. Step 5: Solve for x
    x = 77,418,432,927.54/425,021.69
  6. Step 6: Final answer
    x = 182,151.72

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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.