Home / 111,667.31-154,101.51-60,680.46

Finding the Fourth Proportional to 111,667.31, 154,101.51 and 60,680.46

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Solution

The fourth proportional to 111,667.31, 154,101.51 and 60,680.46 is: 83,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,667.31 : 154,101.51 = 60,680.46 : x
  2. Step 2: Convert to fraction form
    111,667.31/154,101.51 = 60,680.46/x
  3. Step 3: Cross multiply
    111,667.31x = 154,101.51 × 60,680.46
  4. Step 4: Simplify right side
    111,667.31x = 9,350,950,513.49
  5. Step 5: Solve for x
    x = 9,350,950,513.49/111,667.31
  6. Step 6: Final answer
    x = 83,739.38

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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.