Home / 144,965.72-199,967.74-91,165.40

Finding the Fourth Proportional to 144,965.72, 199,967.74 and 91,165.40

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Solution

The fourth proportional to 144,965.72, 199,967.74 and 91,165.40 is: 125,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,965.72 : 199,967.74 = 91,165.40 : x
  2. Step 2: Convert to fraction form
    144,965.72/199,967.74 = 91,165.40/x
  3. Step 3: Cross multiply
    144,965.72x = 199,967.74 × 91,165.40
  4. Step 4: Simplify right side
    144,965.72x = 18,230,139,004.20
  5. Step 5: Solve for x
    x = 18,230,139,004.20/144,965.72
  6. Step 6: Final answer
    x = 125,754.83

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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.