Home / 124,986.40-172,484.22-71,276.56

Finding the Fourth Proportional to 124,986.40, 172,484.22 and 71,276.56

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Solution

The fourth proportional to 124,986.40, 172,484.22 and 71,276.56 is: 98,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,986.40 : 172,484.22 = 71,276.56 : x
  2. Step 2: Convert to fraction form
    124,986.40/172,484.22 = 71,276.56/x
  3. Step 3: Cross multiply
    124,986.40x = 172,484.22 × 71,276.56
  4. Step 4: Simplify right side
    124,986.40x = 12,294,081,855.88
  5. Step 5: Solve for x
    x = 12,294,081,855.88/124,986.40
  6. Step 6: Final answer
    x = 98,363.36

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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.