Home / 70,770.03-106,156.11-18,178.35

Finding the Fourth Proportional to 70,770.03, 106,156.11 and 18,178.35

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Solution

The fourth proportional to 70,770.03, 106,156.11 and 18,178.35 is: 27,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,770.03 : 106,156.11 = 18,178.35 : x
  2. Step 2: Convert to fraction form
    70,770.03/106,156.11 = 18,178.35/x
  3. Step 3: Cross multiply
    70,770.03x = 106,156.11 × 18,178.35
  4. Step 4: Simplify right side
    70,770.03x = 1,929,742,922.22
  5. Step 5: Solve for x
    x = 1,929,742,922.22/70,770.03
  6. Step 6: Final answer
    x = 27,267.80

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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.