Home / 143,815.80-215,529.30-127,097.40

Finding the Fourth Proportional to 143,815.80, 215,529.30 and 127,097.40

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Solution

The fourth proportional to 143,815.80, 215,529.30 and 127,097.40 is: 190,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,815.80 : 215,529.30 = 127,097.40 : x
  2. Step 2: Convert to fraction form
    143,815.80/215,529.30 = 127,097.40/x
  3. Step 3: Cross multiply
    143,815.80x = 215,529.30 × 127,097.40
  4. Step 4: Simplify right side
    143,815.80x = 27,393,213,653.82
  5. Step 5: Solve for x
    x = 27,393,213,653.82/143,815.80
  6. Step 6: Final answer
    x = 190,474.30

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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.