Home / 130,742.25-196,218.47-67,580.90

Finding the Fourth Proportional to 130,742.25, 196,218.47 and 67,580.90

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Solution

The fourth proportional to 130,742.25, 196,218.47 and 67,580.90 is: 101,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,742.25 : 196,218.47 = 67,580.90 : x
  2. Step 2: Convert to fraction form
    130,742.25/196,218.47 = 67,580.90/x
  3. Step 3: Cross multiply
    130,742.25x = 196,218.47 × 67,580.90
  4. Step 4: Simplify right side
    130,742.25x = 13,260,620,342.76
  5. Step 5: Solve for x
    x = 13,260,620,342.76/130,742.25
  6. Step 6: Final answer
    x = 101,425.67

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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.