Home / 116,903.96-161,331.18-66,606.20

Finding the Fourth Proportional to 116,903.96, 161,331.18 and 66,606.20

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Solution

The fourth proportional to 116,903.96, 161,331.18 and 66,606.20 is: 91,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,903.96 : 161,331.18 = 66,606.20 : x
  2. Step 2: Convert to fraction form
    116,903.96/161,331.18 = 66,606.20/x
  3. Step 3: Cross multiply
    116,903.96x = 161,331.18 × 66,606.20
  4. Step 4: Simplify right side
    116,903.96x = 10,745,656,841.32
  5. Step 5: Solve for x
    x = 10,745,656,841.32/116,903.96
  6. Step 6: Final answer
    x = 91,918.67

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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.