Home / 153,426.43-211,713.32-85,449.73

Finding the Fourth Proportional to 153,426.43, 211,713.32 and 85,449.73

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Solution

The fourth proportional to 153,426.43, 211,713.32 and 85,449.73 is: 117,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,426.43 : 211,713.32 = 85,449.73 : x
  2. Step 2: Convert to fraction form
    153,426.43/211,713.32 = 85,449.73/x
  3. Step 3: Cross multiply
    153,426.43x = 211,713.32 × 85,449.73
  4. Step 4: Simplify right side
    153,426.43x = 18,090,845,074.87
  5. Step 5: Solve for x
    x = 18,090,845,074.87/153,426.43
  6. Step 6: Final answer
    x = 117,912.18

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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.