Home / 138,968.98-191,777.35-75,306.22

Finding the Fourth Proportional to 138,968.98, 191,777.35 and 75,306.22

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Solution

The fourth proportional to 138,968.98, 191,777.35 and 75,306.22 is: 103,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,968.98 : 191,777.35 = 75,306.22 : x
  2. Step 2: Convert to fraction form
    138,968.98/191,777.35 = 75,306.22/x
  3. Step 3: Cross multiply
    138,968.98x = 191,777.35 × 75,306.22
  4. Step 4: Simplify right side
    138,968.98x = 14,442,027,310.12
  5. Step 5: Solve for x
    x = 14,442,027,310.12/138,968.98
  6. Step 6: Final answer
    x = 103,922.67

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1.5x scale

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.