Home / 127,921.13-191,925.93-43,740.54

Finding the Fourth Proportional to 127,921.13, 191,925.93 and 43,740.54

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Solution

The fourth proportional to 127,921.13, 191,925.93 and 43,740.54 is: 65,625.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,921.13 : 191,925.93 = 43,740.54 : x
  2. Step 2: Convert to fraction form
    127,921.13/191,925.93 = 43,740.54/x
  3. Step 3: Cross multiply
    127,921.13x = 191,925.93 × 43,740.54
  4. Step 4: Simplify right side
    127,921.13x = 8,394,943,818.20
  5. Step 5: Solve for x
    x = 8,394,943,818.20/127,921.13
  6. Step 6: Final answer
    x = 65,625.94

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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.