Home / 127,829.80-191,306.94-105,373.48

Finding the Fourth Proportional to 127,829.80, 191,306.94 and 105,373.48

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Solution

The fourth proportional to 127,829.80, 191,306.94 and 105,373.48 is: 157,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,829.80 : 191,306.94 = 105,373.48 : x
  2. Step 2: Convert to fraction form
    127,829.80/191,306.94 = 105,373.48/x
  3. Step 3: Cross multiply
    127,829.80x = 191,306.94 × 105,373.48
  4. Step 4: Simplify right side
    127,829.80x = 20,158,678,015.95
  5. Step 5: Solve for x
    x = 20,158,678,015.95/127,829.80
  6. Step 6: Final answer
    x = 157,699.36

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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.