Home / 127,389.49-191,062.90-38,621.77

Finding the Fourth Proportional to 127,389.49, 191,062.90 and 38,621.77

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Solution

The fourth proportional to 127,389.49, 191,062.90 and 38,621.77 is: 57,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,389.49 : 191,062.90 = 38,621.77 : x
  2. Step 2: Convert to fraction form
    127,389.49/191,062.90 = 38,621.77/x
  3. Step 3: Cross multiply
    127,389.49x = 191,062.90 × 38,621.77
  4. Step 4: Simplify right side
    127,389.49x = 7,379,187,379.33
  5. Step 5: Solve for x
    x = 7,379,187,379.33/127,389.49
  6. Step 6: Final answer
    x = 57,926.19

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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.