Home / 130,478.40-195,742.08-45,084.96

Finding the Fourth Proportional to 130,478.40, 195,742.08 and 45,084.96

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Solution

The fourth proportional to 130,478.40, 195,742.08 and 45,084.96 is: 67,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,478.40 : 195,742.08 = 45,084.96 : x
  2. Step 2: Convert to fraction form
    130,478.40/195,742.08 = 45,084.96/x
  3. Step 3: Cross multiply
    130,478.40x = 195,742.08 × 45,084.96
  4. Step 4: Simplify right side
    130,478.40x = 8,825,023,847.12
  5. Step 5: Solve for x
    x = 8,825,023,847.12/130,478.40
  6. Step 6: Final answer
    x = 67,635.90

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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.