Home / 100,401.02-149,781.32-93,242.24

Finding the Fourth Proportional to 100,401.02, 149,781.32 and 93,242.24

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Solution

The fourth proportional to 100,401.02, 149,781.32 and 93,242.24 is: 139,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,401.02 : 149,781.32 = 93,242.24 : x
  2. Step 2: Convert to fraction form
    100,401.02/149,781.32 = 93,242.24/x
  3. Step 3: Cross multiply
    100,401.02x = 149,781.32 × 93,242.24
  4. Step 4: Simplify right side
    100,401.02x = 13,965,945,786.96
  5. Step 5: Solve for x
    x = 13,965,945,786.96/100,401.02
  6. Step 6: Final answer
    x = 139,101.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.