Home / 103,744.60-155,487.30-76,010.20

Finding the Fourth Proportional to 103,744.60, 155,487.30 and 76,010.20

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Solution

The fourth proportional to 103,744.60, 155,487.30 and 76,010.20 is: 113,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.60 : 155,487.30 = 76,010.20 : x
  2. Step 2: Convert to fraction form
    103,744.60/155,487.30 = 76,010.20/x
  3. Step 3: Cross multiply
    103,744.60x = 155,487.30 × 76,010.20
  4. Step 4: Simplify right side
    103,744.60x = 11,818,620,770.46
  5. Step 5: Solve for x
    x = 11,818,620,770.46/103,744.60
  6. Step 6: Final answer
    x = 113,920.35

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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.