Home / 100,334.34-138,467.61-55,622.34

Finding the Fourth Proportional to 100,334.34, 138,467.61 and 55,622.34

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Solution

The fourth proportional to 100,334.34, 138,467.61 and 55,622.34 is: 76,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,334.34 : 138,467.61 = 55,622.34 : x
  2. Step 2: Convert to fraction form
    100,334.34/138,467.61 = 55,622.34/x
  3. Step 3: Cross multiply
    100,334.34x = 138,467.61 × 55,622.34
  4. Step 4: Simplify right side
    100,334.34x = 7,701,892,482.41
  5. Step 5: Solve for x
    x = 7,701,892,482.41/100,334.34
  6. Step 6: Final answer
    x = 76,762.28

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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.