Home / 124,926.88-172,403.36-71,219.84

Finding the Fourth Proportional to 124,926.88, 172,403.36 and 71,219.84

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Solution

The fourth proportional to 124,926.88, 172,403.36 and 71,219.84 is: 98,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,926.88 : 172,403.36 = 71,219.84 : x
  2. Step 2: Convert to fraction form
    124,926.88/172,403.36 = 71,219.84/x
  3. Step 3: Cross multiply
    124,926.88x = 172,403.36 × 71,219.84
  4. Step 4: Simplify right side
    124,926.88x = 12,278,539,714.66
  5. Step 5: Solve for x
    x = 12,278,539,714.66/124,926.88
  6. Step 6: Final answer
    x = 98,285.81

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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.