Home / 115,407.99-172,867.77-73,265.72

Finding the Fourth Proportional to 115,407.99, 172,867.77 and 73,265.72

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Solution

The fourth proportional to 115,407.99, 172,867.77 and 73,265.72 is: 109,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,407.99 : 172,867.77 = 73,265.72 : x
  2. Step 2: Convert to fraction form
    115,407.99/172,867.77 = 73,265.72/x
  3. Step 3: Cross multiply
    115,407.99x = 172,867.77 × 73,265.72
  4. Step 4: Simplify right side
    115,407.99x = 12,665,280,769.51
  5. Step 5: Solve for x
    x = 12,665,280,769.51/115,407.99
  6. Step 6: Final answer
    x = 109,743.53

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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.