Home / 143,789.90-215,618.81-48,981.51

Finding the Fourth Proportional to 143,789.90, 215,618.81 and 48,981.51

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Solution

The fourth proportional to 143,789.90, 215,618.81 and 48,981.51 is: 73,449.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,789.90 : 215,618.81 = 48,981.51 : x
  2. Step 2: Convert to fraction form
    143,789.90/215,618.81 = 48,981.51/x
  3. Step 3: Cross multiply
    143,789.90x = 215,618.81 × 48,981.51
  4. Step 4: Simplify right side
    143,789.90x = 10,561,334,653.30
  5. Step 5: Solve for x
    x = 10,561,334,653.30/143,789.90
  6. Step 6: Final answer
    x = 73,449.77

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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.