Home / 143,595.32-198,147.22-83,185.40

Finding the Fourth Proportional to 143,595.32, 198,147.22 and 83,185.40

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Solution

The fourth proportional to 143,595.32, 198,147.22 and 83,185.40 is: 114,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,595.32 : 198,147.22 = 83,185.40 : x
  2. Step 2: Convert to fraction form
    143,595.32/198,147.22 = 83,185.40/x
  3. Step 3: Cross multiply
    143,595.32x = 198,147.22 × 83,185.40
  4. Step 4: Simplify right side
    143,595.32x = 16,482,956,041.99
  5. Step 5: Solve for x
    x = 16,482,956,041.99/143,595.32
  6. Step 6: Final answer
    x = 114,787.56

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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.