Home / 121,283.81-181,945.16-51,173.45

Finding the Fourth Proportional to 121,283.81, 181,945.16 and 51,173.45

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Solution

The fourth proportional to 121,283.81, 181,945.16 and 51,173.45 is: 76,768.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,283.81 : 181,945.16 = 51,173.45 : x
  2. Step 2: Convert to fraction form
    121,283.81/181,945.16 = 51,173.45/x
  3. Step 3: Cross multiply
    121,283.81x = 181,945.16 × 51,173.45
  4. Step 4: Simplify right side
    121,283.81x = 9,310,761,292.13
  5. Step 5: Solve for x
    x = 9,310,761,292.13/121,283.81
  6. Step 6: Final answer
    x = 76,768.38

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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.