Home / 150,057.36-207,072.45-86,381.64

Finding the Fourth Proportional to 150,057.36, 207,072.45 and 86,381.64

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Solution

The fourth proportional to 150,057.36, 207,072.45 and 86,381.64 is: 119,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,057.36 : 207,072.45 = 86,381.64 : x
  2. Step 2: Convert to fraction form
    150,057.36/207,072.45 = 86,381.64/x
  3. Step 3: Cross multiply
    150,057.36x = 207,072.45 × 86,381.64
  4. Step 4: Simplify right side
    150,057.36x = 17,887,257,829.82
  5. Step 5: Solve for x
    x = 17,887,257,829.82/150,057.36
  6. Step 6: Final answer
    x = 119,202.80

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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.