Home / 118,869.96-178,463.31-68,985.87

Finding the Fourth Proportional to 118,869.96, 178,463.31 and 68,985.87

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Solution

The fourth proportional to 118,869.96, 178,463.31 and 68,985.87 is: 103,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,869.96 : 178,463.31 = 68,985.87 : x
  2. Step 2: Convert to fraction form
    118,869.96/178,463.31 = 68,985.87/x
  3. Step 3: Cross multiply
    118,869.96x = 178,463.31 × 68,985.87
  4. Step 4: Simplify right side
    118,869.96x = 12,311,446,703.43
  5. Step 5: Solve for x
    x = 12,311,446,703.43/118,869.96
  6. Step 6: Final answer
    x = 103,570.71

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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.