Home / 114,535.80-171,579.94-78,913.08

Finding the Fourth Proportional to 114,535.80, 171,579.94 and 78,913.08

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Solution

The fourth proportional to 114,535.80, 171,579.94 and 78,913.08 is: 118,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,535.80 : 171,579.94 = 78,913.08 : x
  2. Step 2: Convert to fraction form
    114,535.80/171,579.94 = 78,913.08/x
  3. Step 3: Cross multiply
    114,535.80x = 171,579.94 × 78,913.08
  4. Step 4: Simplify right side
    114,535.80x = 13,539,901,531.62
  5. Step 5: Solve for x
    x = 13,539,901,531.62/114,535.80
  6. Step 6: Final answer
    x = 118,215.45

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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.