Home / 127,835.20-191,752.80-57,851.20

Finding the Fourth Proportional to 127,835.20, 191,752.80 and 57,851.20

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Solution

The fourth proportional to 127,835.20, 191,752.80 and 57,851.20 is: 86,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,835.20 : 191,752.80 = 57,851.20 : x
  2. Step 2: Convert to fraction form
    127,835.20/191,752.80 = 57,851.20/x
  3. Step 3: Cross multiply
    127,835.20x = 191,752.80 × 57,851.20
  4. Step 4: Simplify right side
    127,835.20x = 11,093,129,583.36
  5. Step 5: Solve for x
    x = 11,093,129,583.36/127,835.20
  6. Step 6: Final answer
    x = 86,776.80

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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.