Home / 281,539.18-422,335.58-79,134.76

Finding the Fourth Proportional to 281,539.18, 422,335.58 and 79,134.76

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Solution

The fourth proportional to 281,539.18, 422,335.58 and 79,134.76 is: 118,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,539.18 : 422,335.58 = 79,134.76 : x
  2. Step 2: Convert to fraction form
    281,539.18/422,335.58 = 79,134.76/x
  3. Step 3: Cross multiply
    281,539.18x = 422,335.58 × 79,134.76
  4. Step 4: Simplify right side
    281,539.18x = 33,421,424,762.76
  5. Step 5: Solve for x
    x = 33,421,424,762.76/281,539.18
  6. Step 6: Final answer
    x = 118,709.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.