Home / 143,397.90-197,893.26-79,739.64

Finding the Fourth Proportional to 143,397.90, 197,893.26 and 79,739.64

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Solution

The fourth proportional to 143,397.90, 197,893.26 and 79,739.64 is: 110,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,397.90 : 197,893.26 = 79,739.64 : x
  2. Step 2: Convert to fraction form
    143,397.90/197,893.26 = 79,739.64/x
  3. Step 3: Cross multiply
    143,397.90x = 197,893.26 × 79,739.64
  4. Step 4: Simplify right side
    143,397.90x = 15,779,937,310.83
  5. Step 5: Solve for x
    x = 15,779,937,310.83/143,397.90
  6. Step 6: Final answer
    x = 110,043.02

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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.