Home / 119,847.42-165,409.56-72,105.21

Finding the Fourth Proportional to 119,847.42, 165,409.56 and 72,105.21

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Solution

The fourth proportional to 119,847.42, 165,409.56 and 72,105.21 is: 99,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,847.42 : 165,409.56 = 72,105.21 : x
  2. Step 2: Convert to fraction form
    119,847.42/165,409.56 = 72,105.21/x
  3. Step 3: Cross multiply
    119,847.42x = 165,409.56 × 72,105.21
  4. Step 4: Simplify right side
    119,847.42x = 11,926,891,059.81
  5. Step 5: Solve for x
    x = 11,926,891,059.81/119,847.42
  6. Step 6: Final answer
    x = 99,517.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.