Home / 137,829.23-190,204.34-77,399.92

Finding the Fourth Proportional to 137,829.23, 190,204.34 and 77,399.92

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Solution

The fourth proportional to 137,829.23, 190,204.34 and 77,399.92 is: 106,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,829.23 : 190,204.34 = 77,399.92 : x
  2. Step 2: Convert to fraction form
    137,829.23/190,204.34 = 77,399.92/x
  3. Step 3: Cross multiply
    137,829.23x = 190,204.34 × 77,399.92
  4. Step 4: Simplify right side
    137,829.23x = 14,721,800,550.41
  5. Step 5: Solve for x
    x = 14,721,800,550.41/137,829.23
  6. Step 6: Final answer
    x = 106,811.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.