Home / 120,341.28-166,077.09-66,632.21

Finding the Fourth Proportional to 120,341.28, 166,077.09 and 66,632.21

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Solution

The fourth proportional to 120,341.28, 166,077.09 and 66,632.21 is: 91,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,341.28 : 166,077.09 = 66,632.21 : x
  2. Step 2: Convert to fraction form
    120,341.28/166,077.09 = 66,632.21/x
  3. Step 3: Cross multiply
    120,341.28x = 166,077.09 × 66,632.21
  4. Step 4: Simplify right side
    120,341.28x = 11,066,083,537.07
  5. Step 5: Solve for x
    x = 11,066,083,537.07/120,341.28
  6. Step 6: Final answer
    x = 91,955.84

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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.