Home / 130,911.75-196,184.55-70,810.43

Finding the Fourth Proportional to 130,911.75, 196,184.55 and 70,810.43

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Solution

The fourth proportional to 130,911.75, 196,184.55 and 70,810.43 is: 106,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,911.75 : 196,184.55 = 70,810.43 : x
  2. Step 2: Convert to fraction form
    130,911.75/196,184.55 = 70,810.43/x
  3. Step 3: Cross multiply
    130,911.75x = 196,184.55 × 70,810.43
  4. Step 4: Simplify right side
    130,911.75x = 13,891,912,344.86
  5. Step 5: Solve for x
    x = 13,891,912,344.86/130,911.75
  6. Step 6: Final answer
    x = 106,116.62

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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.