Home / 119,727.28-165,224.80-66,014.40

Finding the Fourth Proportional to 119,727.28, 165,224.80 and 66,014.40

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Solution

The fourth proportional to 119,727.28, 165,224.80 and 66,014.40 is: 91,100.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,727.28 : 165,224.80 = 66,014.40 : x
  2. Step 2: Convert to fraction form
    119,727.28/165,224.80 = 66,014.40/x
  3. Step 3: Cross multiply
    119,727.28x = 165,224.80 × 66,014.40
  4. Step 4: Simplify right side
    119,727.28x = 10,907,216,037.12
  5. Step 5: Solve for x
    x = 10,907,216,037.12/119,727.28
  6. Step 6: Final answer
    x = 91,100.51

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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.