Home / 149,479.21-206,154.40-126,309.16

Finding the Fourth Proportional to 149,479.21, 206,154.40 and 126,309.16

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Solution

The fourth proportional to 149,479.21, 206,154.40 and 126,309.16 is: 174,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,479.21 : 206,154.40 = 126,309.16 : x
  2. Step 2: Convert to fraction form
    149,479.21/206,154.40 = 126,309.16/x
  3. Step 3: Cross multiply
    149,479.21x = 206,154.40 × 126,309.16
  4. Step 4: Simplify right side
    149,479.21x = 26,039,189,516.02
  5. Step 5: Solve for x
    x = 26,039,189,516.02/149,479.21
  6. Step 6: Final answer
    x = 174,199.41

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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.