Home / 116,899.96-161,325.66-66,602.20

Finding the Fourth Proportional to 116,899.96, 161,325.66 and 66,602.20

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Solution

The fourth proportional to 116,899.96, 161,325.66 and 66,602.20 is: 91,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,899.96 : 161,325.66 = 66,602.20 : x
  2. Step 2: Convert to fraction form
    116,899.96/161,325.66 = 66,602.20/x
  3. Step 3: Cross multiply
    116,899.96x = 161,325.66 × 66,602.20
  4. Step 4: Simplify right side
    116,899.96x = 10,744,643,872.45
  5. Step 5: Solve for x
    x = 10,744,643,872.45/116,899.96
  6. Step 6: Final answer
    x = 91,913.15

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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.