Home / 124,742.67-172,096.02-76,912.98

Finding the Fourth Proportional to 124,742.67, 172,096.02 and 76,912.98

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Solution

The fourth proportional to 124,742.67, 172,096.02 and 76,912.98 is: 106,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,742.67 : 172,096.02 = 76,912.98 : x
  2. Step 2: Convert to fraction form
    124,742.67/172,096.02 = 76,912.98/x
  3. Step 3: Cross multiply
    124,742.67x = 172,096.02 × 76,912.98
  4. Step 4: Simplify right side
    124,742.67x = 13,236,417,744.34
  5. Step 5: Solve for x
    x = 13,236,417,744.34/124,742.67
  6. Step 6: Final answer
    x = 106,109.78

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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.