Home / 119,724.21-165,220.56-66,011.36

Finding the Fourth Proportional to 119,724.21, 165,220.56 and 66,011.36

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Solution

The fourth proportional to 119,724.21, 165,220.56 and 66,011.36 is: 91,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,724.21 : 165,220.56 = 66,011.36 : x
  2. Step 2: Convert to fraction form
    119,724.21/165,220.56 = 66,011.36/x
  3. Step 3: Cross multiply
    119,724.21x = 165,220.56 × 66,011.36
  4. Step 4: Simplify right side
    119,724.21x = 10,906,433,039.46
  5. Step 5: Solve for x
    x = 10,906,433,039.46/119,724.21
  6. Step 6: Final answer
    x = 91,096.30

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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.