Home / 199,385.13-274,995.90-127,771.81

Finding the Fourth Proportional to 199,385.13, 274,995.90 and 127,771.81

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Solution

The fourth proportional to 199,385.13, 274,995.90 and 127,771.81 is: 176,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,385.13 : 274,995.90 = 127,771.81 : x
  2. Step 2: Convert to fraction form
    199,385.13/274,995.90 = 127,771.81/x
  3. Step 3: Cross multiply
    199,385.13x = 274,995.90 × 127,771.81
  4. Step 4: Simplify right side
    199,385.13x = 35,136,723,885.58
  5. Step 5: Solve for x
    x = 35,136,723,885.58/199,385.13
  6. Step 6: Final answer
    x = 176,225.40

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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.