Home / 206,079.59-284,487.26-138,140.98

Finding the Fourth Proportional to 206,079.59, 284,487.26 and 138,140.98

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Solution

The fourth proportional to 206,079.59, 284,487.26 and 138,140.98 is: 190,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,079.59 : 284,487.26 = 138,140.98 : x
  2. Step 2: Convert to fraction form
    206,079.59/284,487.26 = 138,140.98/x
  3. Step 3: Cross multiply
    206,079.59x = 284,487.26 × 138,140.98
  4. Step 4: Simplify right side
    206,079.59x = 39,299,347,491.99
  5. Step 5: Solve for x
    x = 39,299,347,491.99/206,079.59
  6. Step 6: Final answer
    x = 190,699.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.