Home / 141,802.89-195,679.17-81,378.51

Finding the Fourth Proportional to 141,802.89, 195,679.17 and 81,378.51

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Solution

The fourth proportional to 141,802.89, 195,679.17 and 81,378.51 is: 112,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,802.89 : 195,679.17 = 81,378.51 : x
  2. Step 2: Convert to fraction form
    141,802.89/195,679.17 = 81,378.51/x
  3. Step 3: Cross multiply
    141,802.89x = 195,679.17 × 81,378.51
  4. Step 4: Simplify right side
    141,802.89x = 15,924,079,292.64
  5. Step 5: Solve for x
    x = 15,924,079,292.64/141,802.89
  6. Step 6: Final answer
    x = 112,297.28

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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.