Home / 127,860.18-191,657.18-71,617.82

Finding the Fourth Proportional to 127,860.18, 191,657.18 and 71,617.82

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Solution

The fourth proportional to 127,860.18, 191,657.18 and 71,617.82 is: 107,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,860.18 : 191,657.18 = 71,617.82 : x
  2. Step 2: Convert to fraction form
    127,860.18/191,657.18 = 71,617.82/x
  3. Step 3: Cross multiply
    127,860.18x = 191,657.18 × 71,617.82
  4. Step 4: Simplify right side
    127,860.18x = 13,726,069,418.95
  5. Step 5: Solve for x
    x = 13,726,069,418.95/127,860.18
  6. Step 6: Final answer
    x = 107,352.18

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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.