Home / 150,108.36-207,115.62-89,667.18

Finding the Fourth Proportional to 150,108.36, 207,115.62 and 89,667.18

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Solution

The fourth proportional to 150,108.36, 207,115.62 and 89,667.18 is: 123,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,108.36 : 207,115.62 = 89,667.18 : x
  2. Step 2: Convert to fraction form
    150,108.36/207,115.62 = 89,667.18/x
  3. Step 3: Cross multiply
    150,108.36x = 207,115.62 × 89,667.18
  4. Step 4: Simplify right side
    150,108.36x = 18,571,473,579.35
  5. Step 5: Solve for x
    x = 18,571,473,579.35/150,108.36
  6. Step 6: Final answer
    x = 123,720.45

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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.