Home / 127,677.48-191,516.13-57,474.78

Finding the Fourth Proportional to 127,677.48, 191,516.13 and 57,474.78

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Solution

The fourth proportional to 127,677.48, 191,516.13 and 57,474.78 is: 86,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,677.48 : 191,516.13 = 57,474.78 : x
  2. Step 2: Convert to fraction form
    127,677.48/191,516.13 = 57,474.78/x
  3. Step 3: Cross multiply
    127,677.48x = 191,516.13 × 57,474.78
  4. Step 4: Simplify right side
    127,677.48x = 11,007,347,438.20
  5. Step 5: Solve for x
    x = 11,007,347,438.20/127,677.48
  6. Step 6: Final answer
    x = 86,212.13

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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.