Home / 143,572.38-215,389.34-43,740.62

Finding the Fourth Proportional to 143,572.38, 215,389.34 and 43,740.62

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Solution

The fourth proportional to 143,572.38, 215,389.34 and 43,740.62 is: 65,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.38 : 215,389.34 = 43,740.62 : x
  2. Step 2: Convert to fraction form
    143,572.38/215,389.34 = 43,740.62/x
  3. Step 3: Cross multiply
    143,572.38x = 215,389.34 × 43,740.62
  4. Step 4: Simplify right side
    143,572.38x = 9,421,263,272.99
  5. Step 5: Solve for x
    x = 9,421,263,272.99/143,572.38
  6. Step 6: Final answer
    x = 65,620.30

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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.