Home / 284,101.07-426,077.89-84,374.51

Finding the Fourth Proportional to 284,101.07, 426,077.89 and 84,374.51

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Solution

The fourth proportional to 284,101.07, 426,077.89 and 84,374.51 is: 126,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,101.07 : 426,077.89 = 84,374.51 : x
  2. Step 2: Convert to fraction form
    284,101.07/426,077.89 = 84,374.51/x
  3. Step 3: Cross multiply
    284,101.07x = 426,077.89 × 84,374.51
  4. Step 4: Simplify right side
    284,101.07x = 35,950,113,190.58
  5. Step 5: Solve for x
    x = 35,950,113,190.58/284,101.07
  6. Step 6: Final answer
    x = 126,539.87

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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.