Home / 143,206.66-213,370.92-135,158.50

Finding the Fourth Proportional to 143,206.66, 213,370.92 and 135,158.50

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Solution

The fourth proportional to 143,206.66, 213,370.92 and 135,158.50 is: 201,379.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,206.66 : 213,370.92 = 135,158.50 : x
  2. Step 2: Convert to fraction form
    143,206.66/213,370.92 = 135,158.50/x
  3. Step 3: Cross multiply
    143,206.66x = 213,370.92 × 135,158.50
  4. Step 4: Simplify right side
    143,206.66x = 28,838,893,490.82
  5. Step 5: Solve for x
    x = 28,838,893,490.82/143,206.66
  6. Step 6: Final answer
    x = 201,379.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.