Home / 127,390.58-191,113.35-38,651.23

Finding the Fourth Proportional to 127,390.58, 191,113.35 and 38,651.23

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Solution

The fourth proportional to 127,390.58, 191,113.35 and 38,651.23 is: 57,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,390.58 : 191,113.35 = 38,651.23 : x
  2. Step 2: Convert to fraction form
    127,390.58/191,113.35 = 38,651.23/x
  3. Step 3: Cross multiply
    127,390.58x = 191,113.35 × 38,651.23
  4. Step 4: Simplify right side
    127,390.58x = 7,386,766,046.92
  5. Step 5: Solve for x
    x = 7,386,766,046.92/127,390.58
  6. Step 6: Final answer
    x = 57,985.18

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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.