Home / 143,935.40-215,878.68-38,730.92

Finding the Fourth Proportional to 143,935.40, 215,878.68 and 38,730.92

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Solution

The fourth proportional to 143,935.40, 215,878.68 and 38,730.92 is: 58,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,935.40 : 215,878.68 = 38,730.92 : x
  2. Step 2: Convert to fraction form
    143,935.40/215,878.68 = 38,730.92/x
  3. Step 3: Cross multiply
    143,935.40x = 215,878.68 × 38,730.92
  4. Step 4: Simplify right side
    143,935.40x = 8,361,179,884.79
  5. Step 5: Solve for x
    x = 8,361,179,884.79/143,935.40
  6. Step 6: Final answer
    x = 58,089.81

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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.