Home / 143,340.30-197,780.81-82,888.92

Finding the Fourth Proportional to 143,340.30, 197,780.81 and 82,888.92

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Solution

The fourth proportional to 143,340.30, 197,780.81 and 82,888.92 is: 114,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,340.30 : 197,780.81 = 82,888.92 : x
  2. Step 2: Convert to fraction form
    143,340.30/197,780.81 = 82,888.92/x
  3. Step 3: Cross multiply
    143,340.30x = 197,780.81 × 82,888.92
  4. Step 4: Simplify right side
    143,340.30x = 16,393,837,323.18
  5. Step 5: Solve for x
    x = 16,393,837,323.18/143,340.30
  6. Step 6: Final answer
    x = 114,370.05

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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.