Home / 137,699.40-190,044.96-76,459.74

Finding the Fourth Proportional to 137,699.40, 190,044.96 and 76,459.74

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Solution

The fourth proportional to 137,699.40, 190,044.96 and 76,459.74 is: 105,525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,699.40 : 190,044.96 = 76,459.74 : x
  2. Step 2: Convert to fraction form
    137,699.40/190,044.96 = 76,459.74/x
  3. Step 3: Cross multiply
    137,699.40x = 190,044.96 × 76,459.74
  4. Step 4: Simplify right side
    137,699.40x = 14,530,788,229.91
  5. Step 5: Solve for x
    x = 14,530,788,229.91/137,699.40
  6. Step 6: Final answer
    x = 105,525.43

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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.