Home / 124,752.96-172,139.18-71,039.03

Finding the Fourth Proportional to 124,752.96, 172,139.18 and 71,039.03

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Solution

The fourth proportional to 124,752.96, 172,139.18 and 71,039.03 is: 98,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752.96 : 172,139.18 = 71,039.03 : x
  2. Step 2: Convert to fraction form
    124,752.96/172,139.18 = 71,039.03/x
  3. Step 3: Cross multiply
    124,752.96x = 172,139.18 × 71,039.03
  4. Step 4: Simplify right side
    124,752.96x = 12,228,599,156.30
  5. Step 5: Solve for x
    x = 12,228,599,156.30/124,752.96
  6. Step 6: Final answer
    x = 98,022.52

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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.