Home / 121,315.66-181,971.33-51,195.58

Finding the Fourth Proportional to 121,315.66, 181,971.33 and 51,195.58

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Solution

The fourth proportional to 121,315.66, 181,971.33 and 51,195.58 is: 76,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,315.66 : 181,971.33 = 51,195.58 : x
  2. Step 2: Convert to fraction form
    121,315.66/181,971.33 = 51,195.58/x
  3. Step 3: Cross multiply
    121,315.66x = 181,971.33 × 51,195.58
  4. Step 4: Simplify right side
    121,315.66x = 9,316,127,782.72
  5. Step 5: Solve for x
    x = 9,316,127,782.72/121,315.66
  6. Step 6: Final answer
    x = 76,792.46

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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.