Home / 130,909.75-196,181.55-70,808.43

Finding the Fourth Proportional to 130,909.75, 196,181.55 and 70,808.43

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Solution

The fourth proportional to 130,909.75, 196,181.55 and 70,808.43 is: 106,113.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,909.75 : 196,181.55 = 70,808.43 : x
  2. Step 2: Convert to fraction form
    130,909.75/196,181.55 = 70,808.43/x
  3. Step 3: Cross multiply
    130,909.75x = 196,181.55 × 70,808.43
  4. Step 4: Simplify right side
    130,909.75x = 13,891,307,550.47
  5. Step 5: Solve for x
    x = 13,891,307,550.47/130,909.75
  6. Step 6: Final answer
    x = 106,113.62

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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.