Home / 138,852.74-191,616.73-75,190.52

Finding the Fourth Proportional to 138,852.74, 191,616.73 and 75,190.52

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Solution

The fourth proportional to 138,852.74, 191,616.73 and 75,190.52 is: 103,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,852.74 : 191,616.73 = 75,190.52 : x
  2. Step 2: Convert to fraction form
    138,852.74/191,616.73 = 75,190.52/x
  3. Step 3: Cross multiply
    138,852.74x = 191,616.73 × 75,190.52
  4. Step 4: Simplify right side
    138,852.74x = 14,407,760,423.34
  5. Step 5: Solve for x
    x = 14,407,760,423.34/138,852.74
  6. Step 6: Final answer
    x = 103,762.89

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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.