Home / 150,241.06-207,378.78-86,621.20

Finding the Fourth Proportional to 150,241.06, 207,378.78 and 86,621.20

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Solution

The fourth proportional to 150,241.06, 207,378.78 and 86,621.20 is: 119,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,241.06 : 207,378.78 = 86,621.20 : x
  2. Step 2: Convert to fraction form
    150,241.06/207,378.78 = 86,621.20/x
  3. Step 3: Cross multiply
    150,241.06x = 207,378.78 × 86,621.20
  4. Step 4: Simplify right side
    150,241.06x = 17,963,398,778.14
  5. Step 5: Solve for x
    x = 17,963,398,778.14/150,241.06
  6. Step 6: Final answer
    x = 119,563.84

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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.