Home / 143,799.66-215,700-43,959.48

Finding the Fourth Proportional to 143,799.66, 215,700 and 43,959.48

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Solution

The fourth proportional to 143,799.66, 215,700 and 43,959.48 is: 65,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,799.66 : 215,700 = 43,959.48 : x
  2. Step 2: Convert to fraction form
    143,799.66/215,700 = 43,959.48/x
  3. Step 3: Cross multiply
    143,799.66x = 215,700 × 43,959.48
  4. Step 4: Simplify right side
    143,799.66x = 9,482,059,836
  5. Step 5: Solve for x
    x = 9,482,059,836/143,799.66
  6. Step 6: Final answer
    x = 65,939.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.