Home / 120,284.16-165,991.11-66,567.81

Finding the Fourth Proportional to 120,284.16, 165,991.11 and 66,567.81

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Solution

The fourth proportional to 120,284.16, 165,991.11 and 66,567.81 is: 91,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,284.16 : 165,991.11 = 66,567.81 : x
  2. Step 2: Convert to fraction form
    120,284.16/165,991.11 = 66,567.81/x
  3. Step 3: Cross multiply
    120,284.16x = 165,991.11 × 66,567.81
  4. Step 4: Simplify right side
    120,284.16x = 11,049,664,672.17
  5. Step 5: Solve for x
    x = 11,049,664,672.17/120,284.16
  6. Step 6: Final answer
    x = 91,863.01

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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.