Home / 120,496.60-180,615.30-45,587.80

Finding the Fourth Proportional to 120,496.60, 180,615.30 and 45,587.80

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Solution

The fourth proportional to 120,496.60, 180,615.30 and 45,587.80 is: 68,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,496.60 : 180,615.30 = 45,587.80 : x
  2. Step 2: Convert to fraction form
    120,496.60/180,615.30 = 45,587.80/x
  3. Step 3: Cross multiply
    120,496.60x = 180,615.30 × 45,587.80
  4. Step 4: Simplify right side
    120,496.60x = 8,233,854,173.34
  5. Step 5: Solve for x
    x = 8,233,854,173.34/120,496.60
  6. Step 6: Final answer
    x = 68,332.67

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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.