Home / 143,725.30-198,346.89-80,063.08

Finding the Fourth Proportional to 143,725.30, 198,346.89 and 80,063.08

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Solution

The fourth proportional to 143,725.30, 198,346.89 and 80,063.08 is: 110,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,725.30 : 198,346.89 = 80,063.08 : x
  2. Step 2: Convert to fraction form
    143,725.30/198,346.89 = 80,063.08/x
  3. Step 3: Cross multiply
    143,725.30x = 198,346.89 × 80,063.08
  4. Step 4: Simplify right side
    143,725.30x = 15,880,262,921.82
  5. Step 5: Solve for x
    x = 15,880,262,921.82/143,725.30
  6. Step 6: Final answer
    x = 110,490.38

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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.