Home / 150,242.28-207,334.53-86,578.44

Finding the Fourth Proportional to 150,242.28, 207,334.53 and 86,578.44

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Solution

The fourth proportional to 150,242.28, 207,334.53 and 86,578.44 is: 119,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,242.28 : 207,334.53 = 86,578.44 : x
  2. Step 2: Convert to fraction form
    150,242.28/207,334.53 = 86,578.44/x
  3. Step 3: Cross multiply
    150,242.28x = 207,334.53 × 86,578.44
  4. Step 4: Simplify right side
    150,242.28x = 17,950,700,165.53
  5. Step 5: Solve for x
    x = 17,950,700,165.53/150,242.28
  6. Step 6: Final answer
    x = 119,478.35

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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.