Home / 108,288.32-149,479.20-70,571.84

Finding the Fourth Proportional to 108,288.32, 149,479.20 and 70,571.84

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Solution

The fourth proportional to 108,288.32, 149,479.20 and 70,571.84 is: 97,416.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,288.32 : 149,479.20 = 70,571.84 : x
  2. Step 2: Convert to fraction form
    108,288.32/149,479.20 = 70,571.84/x
  3. Step 3: Cross multiply
    108,288.32x = 149,479.20 × 70,571.84
  4. Step 4: Simplify right side
    108,288.32x = 10,549,022,185.73
  5. Step 5: Solve for x
    x = 10,549,022,185.73/108,288.32
  6. Step 6: Final answer
    x = 97,416.07

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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.