Home / 141,743.89-195,599.37-78,080.32

Finding the Fourth Proportional to 141,743.89, 195,599.37 and 78,080.32

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Solution

The fourth proportional to 141,743.89, 195,599.37 and 78,080.32 is: 107,746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,743.89 : 195,599.37 = 78,080.32 : x
  2. Step 2: Convert to fraction form
    141,743.89/195,599.37 = 78,080.32/x
  3. Step 3: Cross multiply
    141,743.89x = 195,599.37 × 78,080.32
  4. Step 4: Simplify right side
    141,743.89x = 15,272,461,401.40
  5. Step 5: Solve for x
    x = 15,272,461,401.40/141,743.89
  6. Step 6: Final answer
    x = 107,746.88

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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.