Home / 145,935.77-219,214.79-137,403.65

Finding the Fourth Proportional to 145,935.77, 219,214.79 and 137,403.65

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Solution

The fourth proportional to 145,935.77, 219,214.79 and 137,403.65 is: 206,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,935.77 : 219,214.79 = 137,403.65 : x
  2. Step 2: Convert to fraction form
    145,935.77/219,214.79 = 137,403.65/x
  3. Step 3: Cross multiply
    145,935.77x = 219,214.79 × 137,403.65
  4. Step 4: Simplify right side
    145,935.77x = 30,120,913,171.53
  5. Step 5: Solve for x
    x = 30,120,913,171.53/145,935.77
  6. Step 6: Final answer
    x = 206,398.42

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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.