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Finding the Fourth Proportional to 150,667.97, 207,920.03 and 87,004.40

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Solution

The fourth proportional to 150,667.97, 207,920.03 and 87,004.40 is: 120,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,667.97 : 207,920.03 = 87,004.40 : x
  2. Step 2: Convert to fraction form
    150,667.97/207,920.03 = 87,004.40/x
  3. Step 3: Cross multiply
    150,667.97x = 207,920.03 × 87,004.40
  4. Step 4: Simplify right side
    150,667.97x = 18,089,955,983.51
  5. Step 5: Solve for x
    x = 18,089,955,983.51/150,667.97
  6. Step 6: Final answer
    x = 120,065.04

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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.