Home / 284,166.09-426,319.29-84,485.61

Finding the Fourth Proportional to 284,166.09, 426,319.29 and 84,485.61

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Solution

The fourth proportional to 284,166.09, 426,319.29 and 84,485.61 is: 126,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,166.09 : 426,319.29 = 84,485.61 : x
  2. Step 2: Convert to fraction form
    284,166.09/426,319.29 = 84,485.61/x
  3. Step 3: Cross multiply
    284,166.09x = 426,319.29 × 84,485.61
  4. Step 4: Simplify right side
    284,166.09x = 36,017,845,270.42
  5. Step 5: Solve for x
    x = 36,017,845,270.42/284,166.09
  6. Step 6: Final answer
    x = 126,749.27

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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.